233913 has 8 divisors (see below), whose sum is σ = 315328. Its totient is φ = 154224.

The previous prime is 233911. The next prime is 233917. The reversal of 233913 is 319332.

233913 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 233913 - 2¹ = 233911 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 233913.

It is not an unprimeable number, because it can be changed into a prime (233911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70 + ... + 687.

It is an arithmetic number, because the mean of its divisors is an integer number (39416).

2²³³⁹¹³ is an apocalyptic number.

It is an amenable number.

233913 is a deficient number, since it is larger than the sum of its proper divisors (81415).

233913 is a wasteful number, since it uses less digits than its factorization.

233913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

The product of its digits is 486, while the sum is 21.

The square root of 233913 is about 483.6455313554. The cubic root of 233913 is about 61.6147635665.

The spelling of 233913 in words is "two hundred thirty-three thousand, nine hundred thirteen".