231799398 has 8 divisors (see below), whose sum is σ = 463598808. Its totient is φ = 77266464.

The previous prime is 231799397. The next prime is 231799423. The reversal of 231799398 is 893997132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

231799398 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231799398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231799397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19316611 + ... + 19316622.

It is an arithmetic number, because the mean of its divisors is an integer number (57949851).

Almost surely, 2^231799398 is an apocalyptic number.

231799398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

231799398 is a wasteful number, since it uses less digits than its factorization.

231799398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38633238.

The product of its digits is 734832, while the sum is 51.

The square root of 231799398 is about 15224.9597043802. The cubic root of 231799398 is about 614.2862126602.

The spelling of 231799398 in words is "two hundred thirty-one million, seven hundred ninety-nine thousand, three hundred ninety-eight".