23477872 has 60 divisors (see below), whose sum is σ = 51026248. Its totient is φ = 10454400.

The previous prime is 23477851. The next prime is 23477873. The reversal of 23477872 is 27877432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23477873) 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 11 ways as a sum of consecutive naturals, for example, 129622 + ... + 129802.

Almost surely, 2^23477872 is an apocalyptic number.

23477872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23477872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25513124).

23477872 is an abundant number, since it is smaller than the sum of its proper divisors (27548376).

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

23477872 is a wasteful number, since it uses less digits than its factorization.

23477872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 261 counting only the distinct ones).

The product of its digits is 131712, while the sum is 40.

The square root of 23477872 is about 4845.3969909596. The cubic root of 23477872 is about 286.3427842593.

The spelling of 23477872 in words is "twenty-three million, four hundred seventy-seven thousand, eight hundred seventy-two".