232803921 has 16 divisors (see below), whose sum is σ = 355382144. Its totient is φ = 132793344.

The previous prime is 232803917. The next prime is 232803943. The reversal of 232803921 is 129308232.

It is a happy number.

It is not a de Polignac number, because 232803921 - 2² = 232803917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232803121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2511 + ... + 21723.

It is an arithmetic number, because the mean of its divisors is an integer number (22211384).

Almost surely, 2^232803921 is an apocalyptic number.

232803921 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

232803921 is a deficient number, since it is larger than the sum of its proper divisors (122578223).

232803921 is a wasteful number, since it uses less digits than its factorization.

232803921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19800.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 232803921 is about 15257.9133894514. The cubic root of 232803921 is about 615.1722883022.

The spelling of 232803921 in words is "two hundred thirty-two million, eight hundred three thousand, nine hundred twenty-one".