234908991 has 20 divisors (see below), whose sum is σ = 351349152. Its totient is φ = 156411648.

The previous prime is 234908983. The next prime is 234909011. The reversal of 234908991 is 199809432.

234908991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 234908991 - 2³ = 234908983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234907991) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97386 + ... + 99768.

Almost surely, 2^234908991 is an apocalyptic number.

234908991 is a deficient number, since it is larger than the sum of its proper divisors (116440161).

234908991 is a wasteful number, since it uses less digits than its factorization.

234908991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612 (or 3603 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 234908991 is about 15326.7410430267. The cubic root of 234908991 is about 617.0209069966.

The spelling of 234908991 in words is "two hundred thirty-four million, nine hundred eight thousand, nine hundred ninety-one".