609989874 has 32 divisors (see below), whose sum is σ = 1335372864. Its totient is φ = 184610880.

The previous prime is 609989827. The next prime is 609989893. The reversal of 609989874 is 478989906.

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, 59344 + ... + 68859.

It is an arithmetic number, because the mean of its divisors is an integer number (41730402).

Almost surely, 2^609989874 is an apocalyptic number.

609989874 is an abundant number, since it is smaller than the sum of its proper divisors (725382990).

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

609989874 is a wasteful number, since it uses less digits than its factorization.

609989874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128282.

The product of its (nonzero) digits is 7838208, while the sum is 60.

The square root of 609989874 is about 24697.9730747282. The cubic root of 609989874 is about 848.0879160437.

The spelling of 609989874 in words is "six hundred nine million, nine hundred eighty-nine thousand, eight hundred seventy-four".