23729983 has 4 divisors (see below), whose sum is σ = 23974720. Its totient is φ = 23485248.

The previous prime is 23729957. The next prime is 23729989. The reversal of 23729983 is 38992732.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23729983 - 2¹³ = 23721791 is a prime.

It is a super-2 number, since 2×23729983² = 1126224186360578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23729989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122223 + ... + 122416.

It is an arithmetic number, because the mean of its divisors is an integer number (5993680).

Almost surely, 2^23729983 is an apocalyptic number.

23729983 is a deficient number, since it is larger than the sum of its proper divisors (244737).

23729983 is an equidigital number, since it uses as much as digits as its factorization.

23729983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244736.

The product of its digits is 163296, while the sum is 43.

The square root of 23729983 is about 4871.3430386291. The cubic root of 23729983 is about 287.3640763912.

The spelling of 23729983 in words is "twenty-three million, seven hundred twenty-nine thousand, nine hundred eighty-three".