557396679 has 32 divisors (see below), whose sum is σ = 866004480. Its totient is φ = 312336000.

The previous prime is 557396669. The next prime is 557396687. The reversal of 557396679 is 976693755.

It is a happy number.

It is not a de Polignac number, because 557396679 - 2¹⁷ = 557265607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557396639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229984 + ... + 232394.

It is an arithmetic number, because the mean of its divisors is an integer number (27062640).

Almost surely, 2^557396679 is an apocalyptic number.

557396679 is a deficient number, since it is larger than the sum of its proper divisors (308607801).

557396679 is a wasteful number, since it uses less digits than its factorization.

557396679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631.

The product of its digits is 10716300, while the sum is 57.

The square root of 557396679 is about 23609.2498610185. The cubic root of 557396679 is about 822.9778102834.

The spelling of 557396679 in words is "five hundred fifty-seven million, three hundred ninety-six thousand, six hundred seventy-nine".