234788889 has 4 divisors (see below), whose sum is σ = 313051856. Its totient is φ = 156525924.

The previous prime is 234788881. The next prime is 234788893. The reversal of 234788889 is 988887432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 234788889 - 2³ = 234788881 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (234788881) 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, 39131479 + ... + 39131484.

It is an arithmetic number, because the mean of its divisors is an integer number (78262964).

Almost surely, 2^234788889 is an apocalyptic number.

It is an amenable number.

234788889 is a deficient number, since it is larger than the sum of its proper divisors (78262967).

234788889 is an equidigital number, since it uses as much as digits as its factorization.

234788889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78262966.

The product of its digits is 6193152, while the sum is 57.

The square root of 234788889 is about 15322.8224880405. The cubic root of 234788889 is about 616.9157342408.

The spelling of 234788889 in words is "two hundred thirty-four million, seven hundred eighty-eight thousand, eight hundred eighty-nine".