3172457 has 4 divisors (see below), whose sum is σ = 3249876. Its totient is φ = 3095040.

The previous prime is 3172451. The next prime is 3172471. The reversal of 3172457 is 7542713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7542713 = 17 ⋅443689.

It can be written as a sum of positive squares in 2 ways, for example, as 561001 + 2611456 = 749^2 + 1616^2 .

It is a cyclic number.

It is not a de Polignac number, because 3172457 - 2⁴ = 3172441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3172451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38648 + ... + 38729.

It is an arithmetic number, because the mean of its divisors is an integer number (812469).

Almost surely, 2^3172457 is an apocalyptic number.

It is an amenable number.

3172457 is a deficient number, since it is larger than the sum of its proper divisors (77419).

3172457 is an equidigital number, since it uses as much as digits as its factorization.

3172457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77418.

The product of its digits is 5880, while the sum is 29.

The square root of 3172457 is about 1781.1392421706. The cubic root of 3172457 is about 146.9372524398.

The spelling of 3172457 in words is "three million, one hundred seventy-two thousand, four hundred fifty-seven".