764825 has 6 divisors (see below), whose sum is σ = 948414. Its totient is φ = 611840.

The previous prime is 764809. The next prime is 764837. The reversal of 764825 is 528467.

It can be written as a sum of positive squares in 3 ways, for example, as 85849 + 678976 = 293^2 + 824^2 .

It is not a de Polignac number, because 764825 - 2⁴ = 764809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 764791 and 764800.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15272 + ... + 15321.

It is an arithmetic number, because the mean of its divisors is an integer number (158069).

2⁷⁶⁴⁸²⁵ is an apocalyptic number.

It is an amenable number.

764825 is a deficient number, since it is larger than the sum of its proper divisors (183589).

764825 is a wasteful number, since it uses less digits than its factorization.

764825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30603 (or 30598 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 764825 is about 874.5427376635. The cubic root of 764825 is about 91.4507683039.

The spelling of 764825 in words is "seven hundred sixty-four thousand, eight hundred twenty-five".