23986390 has 16 divisors (see below), whose sum is σ = 43662240. Its totient is φ = 9486400.

The previous prime is 23986387. The next prime is 23986399. The reversal of 23986390 is 9368932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23986399) 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, 12586 + ... + 14365.

It is an arithmetic number, because the mean of its divisors is an integer number (2728890).

Almost surely, 2^23986390 is an apocalyptic number.

23986390 is a deficient number, since it is larger than the sum of its proper divisors (19675850).

23986390 is a wasteful number, since it uses less digits than its factorization.

23986390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27047.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 23986390 is about 4897.5902237733. The cubic root of 23986390 is about 288.3953787052.

The spelling of 23986390 in words is "twenty-three million, nine hundred eighty-six thousand, three hundred ninety".