396039964 has 6 divisors (see below), whose sum is σ = 693069944. Its totient is φ = 198019980.

The previous prime is 396039961. The next prime is 396039977. The reversal of 396039964 is 469930693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396039961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49504992 + ... + 49504999.

Almost surely, 2^396039964 is an apocalyptic number.

It is an amenable number.

396039964 is a deficient number, since it is larger than the sum of its proper divisors (297029980).

396039964 is a wasteful number, since it uses less digits than its factorization.

396039964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99009995 (or 99009993 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 49.

The square root of 396039964 is about 19900.7528500808. The cubic root of 396039964 is about 734.3667484427.

The spelling of 396039964 in words is "three hundred ninety-six million, thirty-nine thousand, nine hundred sixty-four".