23687472 has 40 divisors (see below), whose sum is σ = 63170560. Its totient is φ = 7640640.

The previous prime is 23687467. The next prime is 23687473. The reversal of 23687472 is 27478632.

It is a super-2 number, since 2×23687472² = 1122192659501568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23687472.

It is not an unprimeable number, because it can be changed into a prime (23687473) 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, 6472 + ... + 9447.

It is an arithmetic number, because the mean of its divisors is an integer number (1579264).

Almost surely, 2^23687472 is an apocalyptic number.

It is an amenable number.

23687472 is an abundant number, since it is smaller than the sum of its proper divisors (39483088).

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

23687472 is a wasteful number, since it uses less digits than its factorization.

23687472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15961 (or 15955 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 23687472 is about 4866.9777069553. The cubic root of 23687472 is about 287.1923746757.

The spelling of 23687472 in words is "twenty-three million, six hundred eighty-seven thousand, four hundred seventy-two".