764888745 has 8 divisors (see below), whose sum is σ = 1223822016. Its totient is φ = 407940656.

The previous prime is 764888731. The next prime is 764888791. The reversal of 764888745 is 547888467.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 764888745 - 2⁷ = 764888617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25496277 + ... + 25496306.

It is an arithmetic number, because the mean of its divisors is an integer number (152977752).

Almost surely, 2^764888745 is an apocalyptic number.

It is an amenable number.

764888745 is a deficient number, since it is larger than the sum of its proper divisors (458933271).

764888745 is a wasteful number, since it uses less digits than its factorization.

764888745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50992591.

The product of its digits is 12042240, while the sum is 57.

The square root of 764888745 is about 27656.6220822428. The cubic root of 764888745 is about 914.5330891441.

The spelling of 764888745 in words is "seven hundred sixty-four million, eight hundred eighty-eight thousand, seven hundred forty-five".