764717832 has 36 divisors (see below), whose sum is σ = 2071746495. Its totient is φ = 254827728.

The previous prime is 764717831. The next prime is 764717839. The reversal of 764717832 is 238717467.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 382358916 + 382358916 = 19554^2 + 19554^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=19554.

It is not an unprimeable number, because it can be changed into a prime (764717831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 233019 + ... + 236277.

Almost surely, 2^764717832 is an apocalyptic number.

764717832 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

764717832 is an abundant number, since it is smaller than the sum of its proper divisors (1307028663).

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

764717832 is an equidigital number, since it uses as much as digits as its factorization.

764717832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6530 (or 3264 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 764717832 is about 27653.5319986435. The cubic root of 764717832 is about 914.4649671510.

The spelling of 764717832 in words is "seven hundred sixty-four million, seven hundred seventeen thousand, eight hundred thirty-two".