396718997323 has 4 divisors (see below), whose sum is σ = 432784360728. Its totient is φ = 360653633920.

The previous prime is 396718997303. The next prime is 396718997333. The reversal of 396718997323 is 323799817693.

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 396718997323 - 2⁵ = 396718997291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396718997303) 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, 18032681686 + ... + 18032681707.

It is an arithmetic number, because the mean of its divisors is an integer number (108196090182).

Almost surely, 2^396718997323 is an apocalyptic number.

396718997323 is a deficient number, since it is larger than the sum of its proper divisors (36065363405).

396718997323 is a wasteful number, since it uses less digits than its factorization.

396718997323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36065363404.

The product of its digits is 92588832, while the sum is 67.

The spelling of 396718997323 in words is "three hundred ninety-six billion, seven hundred eighteen million, nine hundred ninety-seven thousand, three hundred twenty-three".