765228 has 24 divisors (see below), whose sum is σ = 1828288. Its totient is φ = 248976.

The previous prime is 765227. The next prime is 765229. The reversal of 765228 is 822567.

It is an interprime number because it is at equal distance from previous prime (765227) and next prime (765229).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 765195 and 765204.

It is not an unprimeable number, because it can be changed into a prime (765227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226 + ... + 1257.

2⁷⁶⁵²²⁸ is an apocalyptic number.

It is an amenable number.

765228 is an abundant number, since it is smaller than the sum of its proper divisors (1063060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

765228 is a wasteful number, since it uses less digits than its factorization.

765228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 1531 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 765228 is about 874.7731134414. The cubic root of 765228 is about 91.4668278332.

The spelling of 765228 in words is "seven hundred sixty-five thousand, two hundred twenty-eight".