764764 has 48 divisors (see below), whose sum is σ = 1806336. Its totient is φ = 273600.

The previous prime is 764723. The next prime is 764783. The reversal of 764764 is 467467.

764764 = T₃₅₁ + T₃₅₂ + ... + T₃₆₂.

Its product of digits (28224) is a multiple of the sum of its prime divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3909 + ... + 4099.

It is an arithmetic number, because the mean of its divisors is an integer number (37632).

2⁷⁶⁴⁷⁶⁴ 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 764764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903168).

764764 is an abundant number, since it is smaller than the sum of its proper divisors (1041572).

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

764764 is a wasteful number, since it uses less digits than its factorization.

764764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 224 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 764764 is about 874.5078615999. The cubic root of 764764 is about 91.4483369655.

The spelling of 764764 in words is "seven hundred sixty-four thousand, seven hundred sixty-four".