376732721 has 2 divisors, whose sum is σ = 376732722. Its totient is φ = 376732720.

The previous prime is 376732717. The next prime is 376732757. The reversal of 376732721 is 127237673.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241336225 + 135396496 = 15535^2 + 11636^2 .

It is a cyclic number.

It is not a de Polignac number, because 376732721 - 2² = 376732717 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (376732711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188366360 + 188366361.

It is an arithmetic number, because the mean of its divisors is an integer number (188366361).

Almost surely, 2^376732721 is an apocalyptic number.

It is an amenable number.

376732721 is a deficient number, since it is larger than the sum of its proper divisors (1).

376732721 is an equidigital number, since it uses as much as digits as its factorization.

376732721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74088, while the sum is 38.

The square root of 376732721 is about 19409.6038341848. The cubic root of 376732721 is about 722.2337527057.

The spelling of 376732721 in words is "three hundred seventy-six million, seven hundred thirty-two thousand, seven hundred twenty-one".