609872 has 20 divisors (see below), whose sum is σ = 1208256. Its totient is φ = 298080.

The previous prime is 609859. The next prime is 609877. The reversal of 609872 is 278906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609877) by changing a digit.

609872 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, 347 + ... + 1157.

2⁶⁰⁹⁸⁷² is an apocalyptic number.

It is an amenable number.

609872 is a deficient number, since it is larger than the sum of its proper divisors (598384).

609872 is a wasteful number, since it uses less digits than its factorization.

609872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 609872 is about 780.9430196884. The cubic root of 609872 is about 84.8033284560.

The spelling of 609872 in words is "six hundred nine thousand, eight hundred seventy-two".