764536 has 16 divisors (see below), whose sum is σ = 1443240. Its totient is φ = 379680.

The previous prime is 764521. The next prime is 764539. The reversal of 764536 is 635467.

It is a junction number, because it is equal to n+sod(n) for n = 764498 and 764507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764539) by changing a digit.

764536 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 1606 + ... + 2026.

2⁷⁶⁴⁵³⁶ is an apocalyptic number.

It is an amenable number.

764536 is a deficient number, since it is larger than the sum of its proper divisors (678704).

764536 is a wasteful number, since it uses less digits than its factorization.

764536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 650 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 764536 is about 874.3774928485. The cubic root of 764536 is about 91.4392481951.

The spelling of 764536 in words is "seven hundred sixty-four thousand, five hundred thirty-six".