56828871 has 20 divisors (see below), whose sum is σ = 92611464. Its totient is φ = 34441200.

The previous prime is 56828861. The next prime is 56828873. The reversal of 56828871 is 17882865.

56828871 is a `hidden beast` number, since 568 + 2 + 8 + 87 + 1 = 666.

It is not a de Polignac number, because 56828871 - 2⁵ = 56828839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56828873) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31000 + ... + 32781.

Almost surely, 2^56828871 is an apocalyptic number.

56828871 is a deficient number, since it is larger than the sum of its proper divisors (35782593).

56828871 is a wasteful number, since it uses less digits than its factorization.

56828871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63804 (or 63795 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 56828871 is about 7538.4926212075. The cubic root of 56828871 is about 384.4645866139.

The spelling of 56828871 in words is "fifty-six million, eight hundred twenty-eight thousand, eight hundred seventy-one".