230404891 has 4 divisors (see below), whose sum is σ = 232993800. Its totient is φ = 227815984.

The previous prime is 230404873. The next prime is 230404897. The reversal of 230404891 is 198404032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230404891 - 2¹⁵ = 230372123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230404897) 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, 1294321 + ... + 1294498.

It is an arithmetic number, because the mean of its divisors is an integer number (58248450).

Almost surely, 2^230404891 is an apocalyptic number.

230404891 is a deficient number, since it is larger than the sum of its proper divisors (2588909).

230404891 is an equidigital number, since it uses as much as digits as its factorization.

230404891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588908.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 230404891 is about 15179.0938794119. The cubic root of 230404891 is about 613.0518838696.

The spelling of 230404891 in words is "two hundred thirty million, four hundred four thousand, eight hundred ninety-one".