764720 has 60 divisors (see below), whose sum is σ = 1979040. Its totient is φ = 274560.

The previous prime is 764719. The next prime is 764723. The reversal of 764720 is 27467.

764720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 764720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9641 + ... + 9719.

It is an arithmetic number, because the mean of its divisors is an integer number (32984).

2⁷⁶⁴⁷²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 764720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (989520).

764720 is an abundant number, since it is smaller than the sum of its proper divisors (1214320).

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

764720 is a wasteful number, since it uses less digits than its factorization.

764720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 764720 is about 874.4827042315. The cubic root of 764720 is about 91.4465831330.

It can be divided in two parts, 7647 and 20, that added together give a palindrome (7667).

The spelling of 764720 in words is "seven hundred sixty-four thousand, seven hundred twenty".