8172056 has 16 divisors (see below), whose sum is σ = 15482040. Its totient is φ = 4043520.

The previous prime is 8172049. The next prime is 8172077. The reversal of 8172056 is 6502718.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4490 + ... + 6041.

Almost surely, 2^8172056 is an apocalyptic number.

It is an amenable number.

8172056 is a deficient number, since it is larger than the sum of its proper divisors (7309984).

8172056 is a wasteful number, since it uses less digits than its factorization.

8172056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10634 (or 10630 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 8172056 is about 2858.6808146416. The cubic root of 8172056 is about 201.4236421701.

The spelling of 8172056 in words is "eight million, one hundred seventy-two thousand, fifty-six".