3172993 has 4 divisors (see below), whose sum is σ = 3191508. Its totient is φ = 3154480.

The previous prime is 3172991. The next prime is 3172997. The reversal of 3172993 is 3992713.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1617984 + 1555009 = 1272^2 + 1247^2 .

It is a cyclic number.

It is not a de Polignac number, because 3172993 - 2¹ = 3172991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3172991) 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, 8998 + ... + 9343.

It is an arithmetic number, because the mean of its divisors is an integer number (797877).

Almost surely, 2^3172993 is an apocalyptic number.

It is an amenable number.

3172993 is a deficient number, since it is larger than the sum of its proper divisors (18515).

3172993 is a wasteful number, since it uses less digits than its factorization.

3172993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18514.

The product of its digits is 10206, while the sum is 34.

The square root of 3172993 is about 1781.2897013119. The cubic root of 3172993 is about 146.9455271968.

The spelling of 3172993 in words is "three million, one hundred seventy-two thousand, nine hundred ninety-three".