23772881 has 8 divisors (see below), whose sum is σ = 26029728. Its totient is φ = 21532000.

The previous prime is 23772871. The next prime is 23772887. The reversal of 23772881 is 18827732.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23772881 is a prime.

It is a super-2 number, since 2×23772881² = 1130299742080322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23772887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755 + ... + 6936.

It is an arithmetic number, because the mean of its divisors is an integer number (3253716).

Almost surely, 2^23772881 is an apocalyptic number.

It is an amenable number.

23772881 is a deficient number, since it is larger than the sum of its proper divisors (2256847).

23772881 is a wasteful number, since it uses less digits than its factorization.

23772881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7983.

The product of its digits is 37632, while the sum is 38.

The square root of 23772881 is about 4875.7441483326. The cubic root of 23772881 is about 287.5371334519.

The spelling of 23772881 in words is "twenty-three million, seven hundred seventy-two thousand, eight hundred eighty-one".