764317742 has 8 divisors (see below), whose sum is σ = 1165908600. Its totient is φ = 375681544.

The previous prime is 764317721. The next prime is 764317747. The reversal of 764317742 is 247713467.

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

It is a super-2 number, since 2×764317742² = 1168363221471957128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 764317742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764317747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3238517 + ... + 3238752.

It is an arithmetic number, because the mean of its divisors is an integer number (145738575).

Almost surely, 2^764317742 is an apocalyptic number.

764317742 is a deficient number, since it is larger than the sum of its proper divisors (401590858).

764317742 is a wasteful number, since it uses less digits than its factorization.

764317742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6477330.

The product of its digits is 197568, while the sum is 41.

The square root of 764317742 is about 27646.2970757387. The cubic root of 764317742 is about 914.3054607738.

The spelling of 764317742 in words is "seven hundred sixty-four million, three hundred seventeen thousand, seven hundred forty-two".