56439398 has 4 divisors (see below), whose sum is σ = 84659100. Its totient is φ = 28219698.

The previous prime is 56439389. The next prime is 56439403. The reversal of 56439398 is 89393465.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14109848 + ... + 14109851.

It is an arithmetic number, because the mean of its divisors is an integer number (21164775).

Almost surely, 2^56439398 is an apocalyptic number.

56439398 is a deficient number, since it is larger than the sum of its proper divisors (28219702).

56439398 is a wasteful number, since it uses less digits than its factorization.

56439398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28219701.

The product of its digits is 699840, while the sum is 47.

The square root of 56439398 is about 7512.6159225665. The cubic root of 56439398 is about 383.5842714016.

The spelling of 56439398 in words is "fifty-six million, four hundred thirty-nine thousand, three hundred ninety-eight".