391379064 has 16 divisors (see below), whose sum is σ = 978447720. Its totient is φ = 130459680.

The previous prime is 391379059. The next prime is 391379069. The reversal of 391379064 is 460973193.

It is an interprime number because it is at equal distance from previous prime (391379059) and next prime (391379069).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391379069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8153707 + ... + 8153754.

Almost surely, 2^391379064 is an apocalyptic number.

It is an amenable number.

391379064 is an abundant number, since it is smaller than the sum of its proper divisors (587068656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

391379064 is a wasteful number, since it uses less digits than its factorization.

391379064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16307470 (or 16307466 counting only the distinct ones).

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

The square root of 391379064 is about 19783.3026565334. The cubic root of 391379064 is about 731.4745101268.

The spelling of 391379064 in words is "three hundred ninety-one million, three hundred seventy-nine thousand, sixty-four".