764649088 has 32 divisors (see below), whose sum is σ = 1740944160. Its totient is φ = 327706368.

The previous prime is 764649047. The next prime is 764649089. The reversal of 764649088 is 880946467.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (764649089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425806 + ... + 427597.

It is an arithmetic number, because the mean of its divisors is an integer number (54404505).

Almost surely, 2^764649088 is an apocalyptic number.

It is an amenable number.

764649088 is an abundant number, since it is smaller than the sum of its proper divisors (976295072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

764649088 is an equidigital number, since it uses as much as digits as its factorization.

764649088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853424 (or 853412 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 764649088 is about 27652.2890191752. The cubic root of 764649088 is about 914.4375645105.

The spelling of 764649088 in words is "seven hundred sixty-four million, six hundred forty-nine thousand, eighty-eight".