396961964 has 24 divisors (see below), whose sum is σ = 799991808. Its totient is φ = 168826320.

The previous prime is 396961949. The next prime is 396961969. The reversal of 396961964 is 469169693.

It is not an unprimeable number, because it can be changed into a prime (396961969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50444 + ... + 57779.

It is an arithmetic number, because the mean of its divisors is an integer number (33332992).

Almost surely, 2^396961964 is an apocalyptic number.

It is an amenable number.

396961964 is an abundant number, since it is smaller than the sum of its proper divisors (403029844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396961964 is a wasteful number, since it uses less digits than its factorization.

396961964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108365 (or 108363 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 53.

The square root of 396961964 is about 19923.9043362490. The cubic root of 396961964 is about 734.9361870957.

The spelling of 396961964 in words is "three hundred ninety-six million, nine hundred sixty-one thousand, nine hundred sixty-four".