23447980 has 24 divisors (see below), whose sum is σ = 49705488. Its totient is φ = 9290688.

The previous prime is 23447953. The next prime is 23447987. The reversal of 23447980 is 8974432.

It is a happy number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (23447987) 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, 3339 + ... + 7618.

It is an arithmetic number, because the mean of its divisors is an integer number (2071062).

Almost surely, 2^23447980 is an apocalyptic number.

23447980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23447980 is an abundant number, since it is smaller than the sum of its proper divisors (26257508).

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

23447980 is a wasteful number, since it uses less digits than its factorization.

23447980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11073 (or 11071 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 23447980 is about 4842.3114315376. The cubic root of 23447980 is about 286.2212088788.

The spelling of 23447980 in words is "twenty-three million, four hundred forty-seven thousand, nine hundred eighty".