63233891 has 16 divisors (see below), whose sum is σ = 75724800. Its totient is φ = 51655968.

The previous prime is 63233873. The next prime is 63233917. The reversal of 63233891 is 19833236.

It is not a de Polignac number, because 63233891 - 2⁶ = 63233827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63233491) 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, 14066 + ... + 18008.

It is an arithmetic number, because the mean of its divisors is an integer number (4732800).

Almost surely, 2^63233891 is an apocalyptic number.

63233891 is a deficient number, since it is larger than the sum of its proper divisors (12490909).

63233891 is a wasteful number, since it uses less digits than its factorization.

63233891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058.

The product of its digits is 23328, while the sum is 35.

The square root of 63233891 is about 7951.9740316477. The cubic root of 63233891 is about 398.3975283679.

The spelling of 63233891 in words is "sixty-three million, two hundred thirty-three thousand, eight hundred ninety-one".