8131672 has 16 divisors (see below), whose sum is σ = 15739200. Its totient is φ = 3934560.

The previous prime is 8131667. The next prime is 8131681. The reversal of 8131672 is 2761318.

It is a super-2 number, since 2×8131672² = 132248179031168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8131672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16147 + ... + 16642.

It is an arithmetic number, because the mean of its divisors is an integer number (983700).

Almost surely, 2^8131672 is an apocalyptic number.

It is an amenable number.

8131672 is a deficient number, since it is larger than the sum of its proper divisors (7607528).

8131672 is a wasteful number, since it uses less digits than its factorization.

8131672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32826 (or 32822 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 8131672 is about 2851.6086688043. The cubic root of 8131672 is about 201.0913011451.

It can be divided in two parts, 813 and 1672, that added together give a triangular number (2485 = T₇₀).

The spelling of 8131672 in words is "eight million, one hundred thirty-one thousand, six hundred seventy-two".