764620 has 12 divisors (see below), whose sum is σ = 1605744. Its totient is φ = 305840.

The previous prime is 764611. The next prime is 764623. The reversal of 764620 is 26467.

It is not an unprimeable number, because it can be changed into a prime (764623) by changing a digit.

764620 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, 19096 + ... + 19135.

It is an arithmetic number, because the mean of its divisors is an integer number (133812).

2⁷⁶⁴⁶²⁰ is an apocalyptic number.

It is an amenable number.

764620 is an abundant number, since it is smaller than the sum of its proper divisors (841124).

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

764620 is a wasteful number, since it uses less digits than its factorization.

764620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38240 (or 38238 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 764620 is about 874.4255257024. The cubic root of 764620 is about 91.4425968997.

The spelling of 764620 in words is "seven hundred sixty-four thousand, six hundred twenty".