23967986 has 16 divisors (see below), whose sum is σ = 41235264. Its totient is φ = 10235184.

The previous prime is 23967973. The next prime is 23967989. The reversal of 23967986 is 68976932.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23967989) 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, 1181 + ... + 7023.

It is an arithmetic number, because the mean of its divisors is an integer number (2577204).

Almost surely, 2^23967986 is an apocalyptic number.

23967986 is a deficient number, since it is larger than the sum of its proper divisors (17267278).

23967986 is a wasteful number, since it uses less digits than its factorization.

23967986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6145.

The product of its digits is 979776, while the sum is 50.

The square root of 23967986 is about 4895.7109800314. The cubic root of 23967986 is about 288.3216009423.

The spelling of 23967986 in words is "twenty-three million, nine hundred sixty-seven thousand, nine hundred eighty-six".