233399969 has 16 divisors (see below), whose sum is σ = 263715264. Its totient is φ = 204734400.

The previous prime is 233399963. The next prime is 233399989. The reversal of 233399969 is 969993332.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233399969 is a prime.

It is a super-2 number, since 2×233399969² = 108951091058401922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 233399969.

It is not an unprimeable number, because it can be changed into a prime (233399963) 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, 32282 + ... + 38844.

It is an arithmetic number, because the mean of its divisors is an integer number (16482204).

Almost surely, 2^233399969 is an apocalyptic number.

It is an amenable number.

233399969 is a deficient number, since it is larger than the sum of its proper divisors (30315295).

233399969 is a wasteful number, since it uses less digits than its factorization.

233399969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6688.

The product of its digits is 2125764, while the sum is 53.

The square root of 233399969 is about 15277.4333250059. The cubic root of 233399969 is about 615.6968495217.

The spelling of 233399969 in words is "two hundred thirty-three million, three hundred ninety-nine thousand, nine hundred sixty-nine".