764627969 has 8 divisors (see below), whose sum is σ = 875759808. Its totient is φ = 653970960.

The previous prime is 764627959. The next prime is 764627971. The reversal of 764627969 is 969726467.

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 764627969 - 2⁴ = 764627953 is a prime.

It is a super-2 number, since 2×764627969² = 1169311861954129922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (764627909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115247 + ... + 121700.

It is an arithmetic number, because the mean of its divisors is an integer number (109469976).

Almost surely, 2^764627969 is an apocalyptic number.

It is an amenable number.

764627969 is a deficient number, since it is larger than the sum of its proper divisors (111131839).

764627969 is a wasteful number, since it uses less digits than its factorization.

764627969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237415.

The product of its digits is 6858432, while the sum is 56.

The square root of 764627969 is about 27651.9071494174. The cubic root of 764627969 is about 914.4291457535.

The spelling of 764627969 in words is "seven hundred sixty-four million, six hundred twenty-seven thousand, nine hundred sixty-nine".