764089 has 2 divisors, whose sum is σ = 764090. Its totient is φ = 764088.

The previous prime is 764081. The next prime is 764111. The reversal of 764089 is 980467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 514089 + 250000 = 717^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 764089 - 2³ = 764081 is a prime.

764089 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (764081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382044 + 382045.

It is an arithmetic number, because the mean of its divisors is an integer number (382045).

2⁷⁶⁴⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

764089 is a deficient number, since it is larger than the sum of its proper divisors (1).

764089 is an equidigital number, since it uses as much as digits as its factorization.

764089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 764089 is about 874.1218450537. The cubic root of 764089 is about 91.4214241762.

The spelling of 764089 in words is "seven hundred sixty-four thousand, eighty-nine".