56397830 has 16 divisors (see below), whose sum is σ = 103432464. Its totient is φ = 22133280.

The previous prime is 56397821. The next prime is 56397851. The reversal of 56397830 is 3879365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52676 + ... + 53735.

It is an arithmetic number, because the mean of its divisors is an integer number (6464529).

Almost surely, 2^56397830 is an apocalyptic number.

56397830 is a deficient number, since it is larger than the sum of its proper divisors (47034634).

56397830 is a wasteful number, since it uses less digits than its factorization.

56397830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106471.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 56397830 is about 7509.8488666550. The cubic root of 56397830 is about 383.4900774658.

The spelling of 56397830 in words is "fifty-six million, three hundred ninety-seven thousand, eight hundred thirty".