234568891 has 4 divisors (see below), whose sum is σ = 234689400. Its totient is φ = 234448384.

The previous prime is 234568879. The next prime is 234568949. The reversal of 234568891 is 198865432.

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 234568891 - 2¹³ = 234560699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234568291) 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, 57286 + ... + 61243.

It is an arithmetic number, because the mean of its divisors is an integer number (58672350).

Almost surely, 2^234568891 is an apocalyptic number.

234568891 is a deficient number, since it is larger than the sum of its proper divisors (120509).

234568891 is a wasteful number, since it uses less digits than its factorization.

234568891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120508.

The product of its digits is 414720, while the sum is 46.

The square root of 234568891 is about 15315.6420368197. The cubic root of 234568891 is about 616.7229899696.

The spelling of 234568891 in words is "two hundred thirty-four million, five hundred sixty-eight thousand, eight hundred ninety-one".