233961 has 16 divisors (see below), whose sum is σ = 384384. Its totient is φ = 123264.

The previous prime is 233941. The next prime is 233969. The reversal of 233961 is 169332.

It is not a de Polignac number, because 233961 - 2¹⁰ = 232937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (233969) 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, 156 + ... + 701.

It is an arithmetic number, because the mean of its divisors is an integer number (24024).

2²³³⁹⁶¹ is an apocalyptic number.

233961 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

233961 is a deficient number, since it is larger than the sum of its proper divisors (150423).

233961 is a wasteful number, since it uses less digits than its factorization.

233961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880.

The product of its digits is 972, while the sum is 24.

The square root of 233961 is about 483.6951519294. The cubic root of 233961 is about 61.6189778205.

The spelling of 233961 in words is "two hundred thirty-three thousand, nine hundred sixty-one".