396969764 has 6 divisors (see below), whose sum is σ = 694697094. Its totient is φ = 198484880.

The previous prime is 396969763. The next prime is 396969767. The reversal of 396969764 is 467969693.

It can be written as a sum of positive squares in only one way, i.e., 295564864 + 101404900 = 17192^2 + 10070^2 .

It is not an unprimeable number, because it can be changed into a prime (396969763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49621217 + ... + 49621224.

It is an arithmetic number, because the mean of its divisors is an integer number (115782849).

Almost surely, 2^396969764 is an apocalyptic number.

It is an amenable number.

396969764 is a deficient number, since it is larger than the sum of its proper divisors (297727330).

396969764 is a wasteful number, since it uses less digits than its factorization.

396969764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99242445 (or 99242443 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 59.

The square root of 396969764 is about 19924.1000800538. The cubic root of 396969764 is about 734.9410007094.

The spelling of 396969764 in words is "three hundred ninety-six million, nine hundred sixty-nine thousand, seven hundred sixty-four".