56398906 has 16 divisors (see below), whose sum is σ = 85821120. Its totient is φ = 27795040.

The previous prime is 56398879. The next prime is 56398913. The reversal of 56398906 is 60989365.

56398906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43110 + ... + 44398.

It is an arithmetic number, because the mean of its divisors is an integer number (5363820).

Almost surely, 2^56398906 is an apocalyptic number.

56398906 is a deficient number, since it is larger than the sum of its proper divisors (29422214).

56398906 is a wasteful number, since it uses less digits than its factorization.

56398906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 56398906 is about 7509.9205055713. The cubic root of 56398906 is about 383.4925162872.

The spelling of 56398906 in words is "fifty-six million, three hundred ninety-eight thousand, nine hundred six".