764888493 has 8 divisors (see below), whose sum is σ = 1021550656. Its totient is φ = 509076000.

The previous prime is 764888489. The next prime is 764888561. The reversal of 764888493 is 394888467.

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

It is not a de Polignac number, because 764888493 - 2² = 764888489 is a prime.

It is a super-2 number, since 2×764888493² = 1170108813447622098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764888093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210313 + ... + 213918.

It is an arithmetic number, because the mean of its divisors is an integer number (127693832).

Almost surely, 2^764888493 is an apocalyptic number.

It is an amenable number.

764888493 is a deficient number, since it is larger than the sum of its proper divisors (256662163).

764888493 is a wasteful number, since it uses less digits than its factorization.

764888493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424835.

The product of its digits is 9289728, while the sum is 57.

The square root of 764888493 is about 27656.6175263715. The cubic root of 764888493 is about 914.5329887102.

It can be divided in two parts, 7648 and 88493, that added together give a triangular number (96141 = T₄₃₈).

The spelling of 764888493 in words is "seven hundred sixty-four million, eight hundred eighty-eight thousand, four hundred ninety-three".