231471898 has 32 divisors (see below), whose sum is σ = 429110784. Its totient is φ = 91375872.

The previous prime is 231471893. The next prime is 231471907. The reversal of 231471898 is 898174132.

It is not an unprimeable number, because it can be changed into a prime (231471893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840 + ... + 21532.

It is an arithmetic number, because the mean of its divisors is an integer number (13409712).

Almost surely, 2^231471898 is an apocalyptic number.

231471898 is a deficient number, since it is larger than the sum of its proper divisors (197638886).

231471898 is a wasteful number, since it uses less digits than its factorization.

231471898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20766.

The product of its digits is 96768, while the sum is 43.

The square root of 231471898 is about 15214.2005376556. The cubic root of 231471898 is about 613.9967762530.

The spelling of 231471898 in words is "two hundred thirty-one million, four hundred seventy-one thousand, eight hundred ninety-eight".