390996371 has 4 divisors (see below), whose sum is σ = 391363200. Its totient is φ = 390629544.

The previous prime is 390996289. The next prime is 390996401. The reversal of 390996371 is 173699093.

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 390996371 - 2²² = 386802067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390996271) 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, 181811 + ... + 183948.

It is an arithmetic number, because the mean of its divisors is an integer number (97840800).

Almost surely, 2^390996371 is an apocalyptic number.

390996371 is a deficient number, since it is larger than the sum of its proper divisors (366829).

390996371 is a wasteful number, since it uses less digits than its factorization.

390996371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366828.

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 390996371 is about 19773.6281698630. The cubic root of 390996371 is about 731.2360188624.

The spelling of 390996371 in words is "three hundred ninety million, nine hundred ninety-six thousand, three hundred seventy-one".