396413907 has 4 divisors (see below), whose sum is σ = 528551880. Its totient is φ = 264275936.

The previous prime is 396413887. The next prime is 396413909. The reversal of 396413907 is 709314693.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 396413907 - 2¹¹ = 396411859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396413909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66068982 + ... + 66068987.

It is an arithmetic number, because the mean of its divisors is an integer number (132137970).

Almost surely, 2^396413907 is an apocalyptic number.

396413907 is a deficient number, since it is larger than the sum of its proper divisors (132137973).

396413907 is a wasteful number, since it uses less digits than its factorization.

396413907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132137972.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 396413907 is about 19910.1458307065. The cubic root of 396413907 is about 734.5978067074.

It can be divided in two parts, 3964 and 13907, that added together give a palindrome (17871).

The spelling of 396413907 in words is "three hundred ninety-six million, four hundred thirteen thousand, nine hundred seven".