23897994 has 8 divisors (see below), whose sum is σ = 47796000. Its totient is φ = 7965996.

The previous prime is 23897983. The next prime is 23898011. The reversal of 23897994 is 49979832.

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

23897994 is an admirable number.

It is a super-2 number, since 2×23897994² = 1142228234448072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1991494 + ... + 1991505.

It is an arithmetic number, because the mean of its divisors is an integer number (5974500).

Almost surely, 2^23897994 is an apocalyptic number.

23897994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23897994 is a wasteful number, since it uses less digits than its factorization.

23897994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983004.

The product of its digits is 979776, while the sum is 51.

The square root of 23897994 is about 4888.5574559373. The cubic root of 23897994 is about 288.0406723037.

The spelling of 23897994 in words is "twenty-three million, eight hundred ninety-seven thousand, nine hundred ninety-four".