379707991 has 16 divisors (see below), whose sum is σ = 424771200. Its totient is φ = 337010688.

The previous prime is 379707947. The next prime is 379707997. The reversal of 379707991 is 199707973.

It is a cyclic number.

It is not a de Polignac number, because 379707991 - 2¹⁷ = 379576919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379707997) 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, 94930 + ... + 98848.

It is an arithmetic number, because the mean of its divisors is an integer number (26548200).

Almost surely, 2^379707991 is an apocalyptic number.

379707991 is a deficient number, since it is larger than the sum of its proper divisors (45063209).

379707991 is a wasteful number, since it uses less digits than its factorization.

379707991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4218.

The product of its (nonzero) digits is 750141, while the sum is 52.

The square root of 379707991 is about 19486.0973773611. The cubic root of 379707991 is about 724.1300646186.

The spelling of 379707991 in words is "three hundred seventy-nine million, seven hundred seven thousand, nine hundred ninety-one".