56679390 has 48 divisors (see below), whose sum is σ = 149402448. Its totient is φ = 14905728.

The previous prime is 56679367. The next prime is 56679401. The reversal of 56679390 is 9397665.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2257 + ... + 10883.

It is an arithmetic number, because the mean of its divisors is an integer number (3112551).

Almost surely, 2^56679390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56679390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74701224).

56679390 is an abundant number, since it is smaller than the sum of its proper divisors (92723058).

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

56679390 is a wasteful number, since it uses less digits than its factorization.

56679390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713 (or 8710 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 56679390 is about 7528.5715776633. The cubic root of 56679390 is about 384.1271958188.

The spelling of 56679390 in words is "fifty-six million, six hundred seventy-nine thousand, three hundred ninety".