23281983 has 12 divisors (see below), whose sum is σ = 34789560. Its totient is φ = 14985936.

The previous prime is 23281981. The next prime is 23282029. The reversal of 23281983 is 38918232.

It is a happy number.

It is not a de Polignac number, because 23281983 - 2¹ = 23281981 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23281981) 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 11 ways as a sum of consecutive naturals, for example, 44341 + ... + 44862.

It is an arithmetic number, because the mean of its divisors is an integer number (2899130).

Almost surely, 2^23281983 is an apocalyptic number.

23281983 is a deficient number, since it is larger than the sum of its proper divisors (11507577).

23281983 is a wasteful number, since it uses less digits than its factorization.

23281983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89238 (or 89235 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 23281983 is about 4825.1407233365. The cubic root of 23281983 is about 285.5441864782.

It can be divided in two parts, 232 and 81983, that added together give a triangular number (82215 = T₄₀₅).

The spelling of 23281983 in words is "twenty-three million, two hundred eighty-one thousand, nine hundred eighty-three".