609972 has 24 divisors (see below), whose sum is σ = 1552992. Its totient is φ = 184800.

The previous prime is 609929. The next prime is 609979. The reversal of 609972 is 279906.

609972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 609972.

It is not an unprimeable number, because it can be changed into a prime (609979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179 + ... + 2442.

It is an arithmetic number, because the mean of its divisors is an integer number (64708).

2⁶⁰⁹⁹⁷² is an apocalyptic number.

It is an amenable number.

609972 is an abundant number, since it is smaller than the sum of its proper divisors (943020).

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

609972 is a wasteful number, since it uses less digits than its factorization.

609972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639 (or 4637 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 609972 is about 781.0070422218. The cubic root of 609972 is about 84.8079632370.

The spelling of 609972 in words is "six hundred nine thousand, nine hundred seventy-two".