609764 has 6 divisors (see below), whose sum is σ = 1067094. Its totient is φ = 304880.

The previous prime is 609757. The next prime is 609779. The reversal of 609764 is 467906.

609764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 369664 + 240100 = 608^2 + 490^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 609764.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 609764.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76217 + ... + 76224.

It is an arithmetic number, because the mean of its divisors is an integer number (177849).

2⁶⁰⁹⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

609764 is a deficient number, since it is larger than the sum of its proper divisors (457330).

609764 is a wasteful number, since it uses less digits than its factorization.

609764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152445 (or 152443 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 609764 is about 780.8738694565. The cubic root of 609764 is about 84.7983223235.

The spelling of 609764 in words is "six hundred nine thousand, seven hundred sixty-four".