396900491 has 8 divisors (see below), whose sum is σ = 427867440. Its totient is φ = 365995872.

The previous prime is 396900487. The next prime is 396900521. The reversal of 396900491 is 194009693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 396900491 - 2² = 396900487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396900451) 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, 1901 + ... + 28238.

It is an arithmetic number, because the mean of its divisors is an integer number (53483430).

Almost surely, 2^396900491 is an apocalyptic number.

396900491 is a deficient number, since it is larger than the sum of its proper divisors (30966949).

396900491 is a wasteful number, since it uses less digits than its factorization.

396900491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31165.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 396900491 is about 19922.3615819009. The cubic root of 396900491 is about 734.8982480582.

The spelling of 396900491 in words is "three hundred ninety-six million, nine hundred thousand, four hundred ninety-one".