56428707 has 6 divisors (see below), whose sum is σ = 75255628. Its totient is φ = 37610464.

The previous prime is 56428681. The next prime is 56428709. The reversal of 56428707 is 70782465.

It is not a de Polignac number, because 56428707 - 2¹² = 56424611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56428709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10843 + ... + 15179.

Almost surely, 2^56428707 is an apocalyptic number.

56428707 is a deficient number, since it is larger than the sum of its proper divisors (18826921).

56428707 is an frugal number, since it uses more digits than its factorization.

56428707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8677 (or 4340 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 56428707 is about 7511.9043524262. The cubic root of 56428707 is about 383.5600497966.

The spelling of 56428707 in words is "fifty-six million, four hundred twenty-eight thousand, seven hundred seven".