556393694 has 8 divisors (see below), whose sum is σ = 841976640. Its totient is φ = 275734816.

The previous prime is 556393639. The next prime is 556393709. The reversal of 556393694 is 496393655.

556393694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1230734 + ... + 1231185.

It is an arithmetic number, because the mean of its divisors is an integer number (105247080).

Almost surely, 2^556393694 is an apocalyptic number.

556393694 is a deficient number, since it is larger than the sum of its proper divisors (285582946).

556393694 is a wasteful number, since it uses less digits than its factorization.

556393694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462034.

The product of its digits is 2624400, while the sum is 50.

The square root of 556393694 is about 23587.9989401390. The cubic root of 556393694 is about 822.4838891533.

Adding to 556393694 its sum of digits (50), we get a square (556393744 = 23588²).

The spelling of 556393694 in words is "five hundred fifty-six million, three hundred ninety-three thousand, six hundred ninety-four".