764394164 has 6 divisors (see below), whose sum is σ = 1337689794. Its totient is φ = 382197080.

The previous prime is 764394161. The next prime is 764394173. The reversal of 764394164 is 461493467.

It can be written as a sum of positive squares in only one way, i.e., 701826064 + 62568100 = 26492^2 + 7910^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764394161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95549267 + ... + 95549274.

It is an arithmetic number, because the mean of its divisors is an integer number (222948299).

Almost surely, 2^764394164 is an apocalyptic number.

It is an amenable number.

764394164 is a deficient number, since it is larger than the sum of its proper divisors (573295630).

764394164 is a wasteful number, since it uses less digits than its factorization.

764394164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191098545 (or 191098543 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 764394164 is about 27647.6791792729. The cubic root of 764394164 is about 914.3359327095.

The spelling of 764394164 in words is "seven hundred sixty-four million, three hundred ninety-four thousand, one hundred sixty-four".