232863909 has 16 divisors (see below), whose sum is σ = 339356160. Its totient is φ = 141396480.

The previous prime is 232863907. The next prime is 232863913. The reversal of 232863909 is 909368232.

232863909 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 232863909 - 2¹ = 232863907 is a prime.

It is a super-2 number, since 2×232863909² = 108451200229520562, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232863907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72064 + ... + 75225.

It is an arithmetic number, because the mean of its divisors is an integer number (21209760).

Almost surely, 2^232863909 is an apocalyptic number.

It is an amenable number.

232863909 is a deficient number, since it is larger than the sum of its proper divisors (106492251).

232863909 is a wasteful number, since it uses less digits than its factorization.

232863909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147340.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 232863909 is about 15259.8790624303. The cubic root of 232863909 is about 615.2251221575.

The spelling of 232863909 in words is "two hundred thirty-two million, eight hundred sixty-three thousand, nine hundred nine".