23223987 has 6 divisors (see below), whose sum is σ = 33545772. Its totient is φ = 15482652.

The previous prime is 23223973. The next prime is 23224027. The reversal of 23223987 is 78932232.

It is not a de Polignac number, because 23223987 - 2⁶ = 23223923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23223787) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1290213 + ... + 1290230.

It is an arithmetic number, because the mean of its divisors is an integer number (5590962).

Almost surely, 2^23223987 is an apocalyptic number.

23223987 is a deficient number, since it is larger than the sum of its proper divisors (10321785).

23223987 is a wasteful number, since it uses less digits than its factorization.

23223987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580449 (or 2580446 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 23223987 is about 4819.1272031354. The cubic root of 23223987 is about 285.3068901031.

The spelling of 23223987 in words is "twenty-three million, two hundred twenty-three thousand, nine hundred eighty-seven".