3172869 has 12 divisors (see below), whose sum is σ = 5237856. Its totient is φ = 1813032.

The previous prime is 3172847. The next prime is 3172879. The reversal of 3172869 is 9682713.

It is not a de Polignac number, because 3172869 - 2⁵ = 3172837 is a prime.

It is a super-2 number, since 2×3172869² = 20134195382322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3172879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25119 + ... + 25244.

It is an arithmetic number, because the mean of its divisors is an integer number (436488).

Almost surely, 2^3172869 is an apocalyptic number.

It is an amenable number.

3172869 is a deficient number, since it is larger than the sum of its proper divisors (2064987).

3172869 is a wasteful number, since it uses less digits than its factorization.

3172869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50376 (or 50373 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 3172869 is about 1781.2548947301. The cubic root of 3172869 is about 146.9436129702.

It can be divided in two parts, 31 and 72869, that added together give a square (72900 = 270²).

The spelling of 3172869 in words is "three million, one hundred seventy-two thousand, eight hundred sixty-nine".