233428917 has 16 divisors (see below), whose sum is σ = 322822080. Its totient is φ = 149856000.

The previous prime is 233428903. The next prime is 233428919. The reversal of 233428917 is 719824332.

It is not a de Polignac number, because 233428917 - 2¹⁰ = 233427893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233428919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31542 + ... + 38232.

It is an arithmetic number, because the mean of its divisors is an integer number (20176380).

Almost surely, 2^233428917 is an apocalyptic number.

It is an amenable number.

233428917 is a deficient number, since it is larger than the sum of its proper divisors (89393163).

233428917 is a wasteful number, since it uses less digits than its factorization.

233428917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7124.

The product of its digits is 72576, while the sum is 39.

The square root of 233428917 is about 15278.3807060827. The cubic root of 233428917 is about 615.7223029035.

The spelling of 233428917 in words is "two hundred thirty-three million, four hundred twenty-eight thousand, nine hundred seventeen".