764340715 has 16 divisors (see below), whose sum is σ = 958003200. Its totient is φ = 584327392.

The previous prime is 764340713. The next prime is 764340739. The reversal of 764340715 is 517043467.

It is a cyclic number.

It is not a de Polignac number, because 764340715 - 2¹ = 764340713 is a prime.

It is a super-2 number, since 2×764340715² = 1168433457213422450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (764340713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149166 + ... + 154204.

It is an arithmetic number, because the mean of its divisors is an integer number (59875200).

Almost surely, 2^764340715 is an apocalyptic number.

764340715 is a deficient number, since it is larger than the sum of its proper divisors (193662485).

764340715 is a wasteful number, since it uses less digits than its factorization.

764340715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 764340715 is about 27646.7125532133. The cubic root of 764340715 is about 914.3146210692.

The spelling of 764340715 in words is "seven hundred sixty-four million, three hundred forty thousand, seven hundred fifteen".