396558513 has 24 divisors (see below), whose sum is σ = 631222592. Its totient is φ = 238357728.

The previous prime is 396558497. The next prime is 396558517. The reversal of 396558513 is 315855693.

396558513 is a `hidden beast` number, since 3 + 9 + 65 + 585 + 1 + 3 = 666.

It is not a de Polignac number, because 396558513 - 2⁴ = 396558497 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (396558517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34381 + ... + 44442.

Almost surely, 2^396558513 is an apocalyptic number.

It is an amenable number.

396558513 is a deficient number, since it is larger than the sum of its proper divisors (234664079).

396558513 is a wasteful number, since it uses less digits than its factorization.

396558513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78885 (or 78882 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 396558513 is about 19913.7769647046. The cubic root of 396558513 is about 734.6871193631.

The spelling of 396558513 in words is "three hundred ninety-six million, five hundred fifty-eight thousand, five hundred thirteen".