23958978 has 16 divisors (see below), whose sum is σ = 48457440. Its totient is φ = 7896416.

The previous prime is 23958973. The next prime is 23958997. The reversal of 23958978 is 87985932.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 23958978.

It is not an unprimeable number, because it can be changed into a prime (23958973) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21900 + ... + 22967.

It is an arithmetic number, because the mean of its divisors is an integer number (3028590).

Almost surely, 2^23958978 is an apocalyptic number.

23958978 is an abundant number, since it is smaller than the sum of its proper divisors (24498462).

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

23958978 is a wasteful number, since it uses less digits than its factorization.

23958978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44961.

The product of its digits is 1088640, while the sum is 51.

The square root of 23958978 is about 4894.7909046250. The cubic root of 23958978 is about 288.2854759987.

The spelling of 23958978 in words is "twenty-three million, nine hundred fifty-eight thousand, nine hundred seventy-eight".