764090 has 16 divisors (see below), whose sum is σ = 1389960. Its totient is φ = 302400.

The previous prime is 764089. The next prime is 764111. The reversal of 764090 is 90467.

764090 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in 4 ways, for example, as 744769 + 19321 = 863^2 + 139^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 764090.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 740 + ... + 1440.

2⁷⁶⁴⁰⁹⁰ is an apocalyptic number.

764090 is a deficient number, since it is larger than the sum of its proper divisors (625870).

764090 is a wasteful number, since it uses less digits than its factorization.

764090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 764090 is about 874.1224170561. The cubic root of 764090 is about 91.4214640587.

The spelling of 764090 in words is "seven hundred sixty-four thousand, ninety".