764225 has 24 divisors (see below), whose sum is σ = 1184448. Its totient is φ = 475200.

The previous prime is 764209. The next prime is 764233. The reversal of 764225 is 522467.

It is not a de Polignac number, because 764225 - 2⁴ = 764209 is a prime.

It is an Ulam number.

It is a Duffinian number.

Its product of digits (3360) is a multiple of the sum of its prime divisors (420).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 764194 and 764203.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1727 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (49352).

2⁷⁶⁴²²⁵ is an apocalyptic number.

It is an amenable number.

764225 is a deficient number, since it is larger than the sum of its proper divisors (420223).

764225 is a wasteful number, since it uses less digits than its factorization.

764225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 420 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 764225 is about 874.1996339510. The cubic root of 764225 is about 91.4268478795.

It can be divided in two parts, 7642 and 25, that added together give a palindrome (7667).

The spelling of 764225 in words is "seven hundred sixty-four thousand, two hundred twenty-five".