764327497 has 16 divisors (see below), whose sum is σ = 855532800. Its totient is φ = 678585600.

The previous prime is 764327483. The next prime is 764327503. The reversal of 764327497 is 794723467.

It is a de Polignac number, because none of the positive numbers 2^k-764327497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 764327497.

It is not an unprimeable number, because it can be changed into a prime (764327407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72247 + ... + 82147.

It is an arithmetic number, because the mean of its divisors is an integer number (53470800).

Almost surely, 2^764327497 is an apocalyptic number.

It is an amenable number.

764327497 is a deficient number, since it is larger than the sum of its proper divisors (91205303).

764327497 is a wasteful number, since it uses less digits than its factorization.

764327497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10176.

The product of its digits is 1778112, while the sum is 49.

The square root of 764327497 is about 27646.4735002495. The cubic root of 764327497 is about 914.3093505225.

The spelling of 764327497 in words is "seven hundred sixty-four million, three hundred twenty-seven thousand, four hundred ninety-seven".