396897760 has 48 divisors (see below), whose sum is σ = 1071626976. Its totient is φ = 136078848.

The previous prime is 396897719. The next prime is 396897769. The reversal of 396897760 is 67798693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396897769) 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, 176067 + ... + 178306.

It is an arithmetic number, because the mean of its divisors is an integer number (22325562).

Almost surely, 2^396897760 is an apocalyptic number.

It is an amenable number.

396897760 is an abundant number, since it is smaller than the sum of its proper divisors (674729216).

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

396897760 is a wasteful number, since it uses less digits than its factorization.

396897760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354395 (or 354387 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 55.

The square root of 396897760 is about 19922.2930407120. The cubic root of 396897760 is about 734.8965624873.

The spelling of 396897760 in words is "three hundred ninety-six million, eight hundred ninety-seven thousand, seven hundred sixty".