764149173 has 24 divisors (see below), whose sum is σ = 1048752288. Its totient is φ = 494901792.

The previous prime is 764149157. The next prime is 764149207. The reversal of 764149173 is 371941467.

It is not a de Polignac number, because 764149173 - 2⁴ = 764149157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764149273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1924611 + ... + 1925007.

It is an arithmetic number, because the mean of its divisors is an integer number (43698012).

Almost surely, 2^764149173 is an apocalyptic number.

It is an amenable number.

764149173 is a deficient number, since it is larger than the sum of its proper divisors (284603115).

764149173 is a wasteful number, since it uses less digits than its factorization.

764149173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833 (or 790 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 764149173 is about 27643.2482353286. The cubic root of 764149173 is about 914.2382396515.

The spelling of 764149173 in words is "seven hundred sixty-four million, one hundred forty-nine thousand, one hundred seventy-three".