56943870 has 32 divisors (see below), whose sum is σ = 136870560. Its totient is φ = 15162240.

The previous prime is 56943857. The next prime is 56943871. The reversal of 56943870 is 7834965.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56943871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30936 + ... + 32724.

It is an arithmetic number, because the mean of its divisors is an integer number (4277205).

Almost surely, 2^56943870 is an apocalyptic number.

56943870 is an abundant number, since it is smaller than the sum of its proper divisors (79926690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56943870 is a wasteful number, since it uses less digits than its factorization.

56943870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 56943870 is about 7546.1162196192. The cubic root of 56943870 is about 384.7237462775.

The spelling of 56943870 in words is "fifty-six million, nine hundred forty-three thousand, eight hundred seventy".