23283987 has 8 divisors (see below), whose sum is σ = 32679360. Its totient is φ = 14705640.

The previous prime is 23283983. The next prime is 23284003. The reversal of 23283987 is 78938232.

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

It is not a de Polignac number, because 23283987 - 2² = 23283983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23283983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204189 + ... + 204302.

It is an arithmetic number, because the mean of its divisors is an integer number (4084920).

Almost surely, 2^23283987 is an apocalyptic number.

23283987 is a deficient number, since it is larger than the sum of its proper divisors (9395373).

23283987 is a wasteful number, since it uses less digits than its factorization.

23283987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408513.

The product of its digits is 145152, while the sum is 42.

The square root of 23283987 is about 4825.3483812052. The cubic root of 23283987 is about 285.5523789953.

The spelling of 23283987 in words is "twenty-three million, two hundred eighty-three thousand, nine hundred eighty-seven".