609671898 has 48 divisors (see below), whose sum is σ = 1465495200. Its totient is φ = 181614240.

The previous prime is 609671851. The next prime is 609671911. The reversal of 609671898 is 898176906.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14413 + ... + 37776.

It is an arithmetic number, because the mean of its divisors is an integer number (30531150).

Almost surely, 2^609671898 is an apocalyptic number.

609671898 is an abundant number, since it is smaller than the sum of its proper divisors (855823302).

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

609671898 is a wasteful number, since it uses less digits than its factorization.

609671898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52267 (or 52264 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 609671898 is about 24691.5349462118. The cubic root of 609671898 is about 847.9405264523.

The spelling of 609671898 in words is "six hundred nine million, six hundred seventy-one thousand, eight hundred ninety-eight".