396312017 has 4 divisors (see below), whose sum is σ = 396355380. Its totient is φ = 396268656.

The previous prime is 396312001. The next prime is 396312023. The reversal of 396312017 is 710213693.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 343879936 + 52432081 = 18544^2 + 7241^2 .

It is a cyclic number.

It is not a de Polignac number, because 396312017 - 2⁴ = 396312001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396312067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042 + ... + 28227.

It is an arithmetic number, because the mean of its divisors is an integer number (99088845).

Almost surely, 2^396312017 is an apocalyptic number.

It is an amenable number.

396312017 is a deficient number, since it is larger than the sum of its proper divisors (43363).

396312017 is a wasteful number, since it uses less digits than its factorization.

396312017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43362.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 396312017 is about 19907.5869205688. The cubic root of 396312017 is about 734.5348635875.

The spelling of 396312017 in words is "three hundred ninety-six million, three hundred twelve thousand, seventeen".