609992 has 8 divisors (see below), whose sum is σ = 1143750. Its totient is φ = 304992.

The previous prime is 609991. The next prime is 609997. The reversal of 609992 is 299906.

It can be written as a sum of positive squares in only one way, i.e., 498436 + 111556 = 706^2 + 334^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (609991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38117 + ... + 38132.

2⁶⁰⁹⁹⁹² is an apocalyptic number.

It is an amenable number.

609992 is a deficient number, since it is larger than the sum of its proper divisors (533758).

609992 is a wasteful number, since it uses less digits than its factorization.

609992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76255 (or 76251 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 609992 is about 781.0198460987. The cubic root of 609992 is about 84.8088901324.

The spelling of 609992 in words is "six hundred nine thousand, nine hundred ninety-two".