764248345 has 48 divisors (see below), whose sum is σ = 1135338768. Its totient is φ = 490721280.

The previous prime is 764248333. The next prime is 764248351. The reversal of 764248345 is 543842467.

It can be written as a sum of positive squares in 8 ways, for example, as 499849 + 763748496 = 707^2 + 27636^2 .

It is a de Polignac number, because none of the positive numbers 2^k-764248345 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1170039 + ... + 1170691.

It is an arithmetic number, because the mean of its divisors is an integer number (23652891).

Almost surely, 2^764248345 is an apocalyptic number.

It is an amenable number.

764248345 is a deficient number, since it is larger than the sum of its proper divisors (371090423).

764248345 is a wasteful number, since it uses less digits than its factorization.

764248345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 963 counting only the distinct ones).

The product of its digits is 645120, while the sum is 43.

The square root of 764248345 is about 27645.0419605397. The cubic root of 764248345 is about 914.2777881742.

The spelling of 764248345 in words is "seven hundred sixty-four million, two hundred forty-eight thousand, three hundred forty-five".