764739425 has 12 divisors (see below), whose sum is σ = 980977020. Its totient is φ = 590694720.

The previous prime is 764739413. The next prime is 764739427. The reversal of 764739425 is 524937467.

It can be written as a sum of positive squares in 6 ways, for example, as 161594944 + 603144481 = 12712^2 + 24559^2 .

It is not a de Polignac number, because 764739425 - 2¹² = 764735329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 764739425.

It is not an unprimeable number, because it can be changed into a prime (764739427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 526682 + ... + 528131.

It is an arithmetic number, because the mean of its divisors is an integer number (81748085).

Almost surely, 2^764739425 is an apocalyptic number.

It is an amenable number.

764739425 is a deficient number, since it is larger than the sum of its proper divisors (216237595).

764739425 is a wasteful number, since it uses less digits than its factorization.

764739425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054852 (or 1054847 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 47.

The square root of 764739425 is about 27653.9224161781. The cubic root of 764739425 is about 914.4735741846.

The spelling of 764739425 in words is "seven hundred sixty-four million, seven hundred thirty-nine thousand, four hundred twenty-five".