376990691 has 32 divisors (see below), whose sum is σ = 514874880. Its totient is φ = 266918400.

The previous prime is 376990687. The next prime is 376990693. The reversal of 376990691 is 196099673.

It is not a de Polignac number, because 376990691 - 2² = 376990687 is a prime.

It is a super-2 number, since 2×376990691² = 284243962201314962, which contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (376990693) 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 31 ways as a sum of consecutive naturals, for example, 32996 + ... + 42926.

It is an arithmetic number, because the mean of its divisors is an integer number (16089840).

Almost surely, 2^376990691 is an apocalyptic number.

376990691 is a deficient number, since it is larger than the sum of its proper divisors (137884189).

376990691 is a wasteful number, since it uses less digits than its factorization.

376990691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9995.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 376990691 is about 19416.2481185218. The cubic root of 376990691 is about 722.3985663966.

The spelling of 376990691 in words is "three hundred seventy-six million, nine hundred ninety thousand, six hundred ninety-one".