391376801 has 16 divisors (see below), whose sum is σ = 416539200. Its totient is φ = 366700608.

The previous prime is 391376761. The next prime is 391376833. The reversal of 391376801 is 108673193.

It is a de Polignac number, because none of the positive numbers 2^k-391376801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (391376851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1274690 + ... + 1274996.

It is an arithmetic number, because the mean of its divisors is an integer number (26033700).

Almost surely, 2^391376801 is an apocalyptic number.

It is an amenable number.

391376801 is a deficient number, since it is larger than the sum of its proper divisors (25162399).

391376801 is a wasteful number, since it uses less digits than its factorization.

391376801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 391376801 is about 19783.2454617537. The cubic root of 391376801 is about 731.4731003001.

The spelling of 391376801 in words is "three hundred ninety-one million, three hundred seventy-six thousand, eight hundred one".