3172369 has 4 divisors (see below), whose sum is σ = 3178980. Its totient is φ = 3165760.

The previous prime is 3172363. The next prime is 3172391. The reversal of 3172369 is 9632713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9632713 = 2963 ⋅3251.

It can be written as a sum of positive squares in 2 ways, for example, as 810000 + 2362369 = 900^2 + 1537^2 .

It is a cyclic number.

It is not a de Polignac number, because 3172369 - 2¹³ = 3164177 is a prime.

It is a super-2 number, since 2×3172369² = 20127850144322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3172369.

It is not an unprimeable number, because it can be changed into a prime (3172363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524 + ... + 3565.

It is an arithmetic number, because the mean of its divisors is an integer number (794745).

Almost surely, 2^3172369 is an apocalyptic number.

It is an amenable number.

3172369 is a deficient number, since it is larger than the sum of its proper divisors (6611).

3172369 is an equidigital number, since it uses as much as digits as its factorization.

3172369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610.

The product of its digits is 6804, while the sum is 31.

The square root of 3172369 is about 1781.1145387088. The cubic root of 3172369 is about 146.9358938086.

The spelling of 3172369 in words is "three million, one hundred seventy-two thousand, three hundred sixty-nine".