396555716 has 6 divisors (see below), whose sum is σ = 693972510. Its totient is φ = 198277856.

The previous prime is 396555701. The next prime is 396555737. The reversal of 396555716 is 617555693.

It can be written as a sum of positive squares in only one way, i.e., 255040900 + 141514816 = 15970^2 + 11896^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49569461 + ... + 49569468.

It is an arithmetic number, because the mean of its divisors is an integer number (115662085).

Almost surely, 2^396555716 is an apocalyptic number.

It is an amenable number.

396555716 is a deficient number, since it is larger than the sum of its proper divisors (297416794).

396555716 is a wasteful number, since it uses less digits than its factorization.

396555716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99138933 (or 99138931 counting only the distinct ones).

The product of its digits is 850500, while the sum is 47.

The square root of 396555716 is about 19913.7067368182. The cubic root of 396555716 is about 734.6853920646.

The spelling of 396555716 in words is "three hundred ninety-six million, five hundred fifty-five thousand, seven hundred sixteen".