764002091 has 2 divisors, whose sum is σ = 764002092. Its totient is φ = 764002090.

The previous prime is 764002079. The next prime is 764002111. The reversal of 764002091 is 190200467.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 764002091 - 2²² = 759807787 is a prime.

It is not a weakly prime, because it can be changed into another prime (764002021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382001045 + 382001046.

It is an arithmetic number, because the mean of its divisors is an integer number (382001046).

Almost surely, 2^764002091 is an apocalyptic number.

764002091 is a deficient number, since it is larger than the sum of its proper divisors (1).

764002091 is an equidigital number, since it uses as much as digits as its factorization.

764002091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 764002091 is about 27640.5877470071. The cubic root of 764002091 is about 914.1795789336.

The spelling of 764002091 in words is "seven hundred sixty-four million, two thousand, ninety-one".