234499891 has 2 divisors, whose sum is σ = 234499892. Its totient is φ = 234499890.

The previous prime is 234499883. The next prime is 234499901. The reversal of 234499891 is 198994432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234499891 - 2³ = 234499883 is a prime.

It is not a weakly prime, because it can be changed into another prime (234499831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117249945 + 117249946.

It is an arithmetic number, because the mean of its divisors is an integer number (117249946).

Almost surely, 2^234499891 is an apocalyptic number.

234499891 is a deficient number, since it is larger than the sum of its proper divisors (1).

234499891 is an equidigital number, since it uses as much as digits as its factorization.

234499891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 49.

The square root of 234499891 is about 15313.3892721370. The cubic root of 234499891 is about 616.6625129823.

The spelling of 234499891 in words is "two hundred thirty-four million, four hundred ninety-nine thousand, eight hundred ninety-one".