765642 has 8 divisors (see below), whose sum is σ = 1531296. Its totient is φ = 255212.

The previous prime is 765623. The next prime is 765649. The reversal of 765642 is 246567.

It is a sphenic number, since it is the product of 3 distinct primes.

765642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (765649) by changing a digit.

765642 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63798 + ... + 63809.

It is an arithmetic number, because the mean of its divisors is an integer number (191412).

2⁷⁶⁵⁶⁴² is an apocalyptic number.

765642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

765642 is a wasteful number, since it uses less digits than its factorization.

765642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127612.

The product of its digits is 10080, while the sum is 30.

The square root of 765642 is about 875.0097142318. The cubic root of 765642 is about 91.4833198416.

The spelling of 765642 in words is "seven hundred sixty-five thousand, six hundred forty-two".