13787472 has 20 divisors (see below), whose sum is σ = 35617760. Its totient is φ = 4595808.

The previous prime is 13787471. The next prime is 13787479. The reversal of 13787472 is 27478731.

It is a self number, because there is not a number n which added to its sum of digits gives 13787472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13787471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143572 + ... + 143667.

It is an arithmetic number, because the mean of its divisors is an integer number (1780888).

Almost surely, 2^13787472 is an apocalyptic number.

13787472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13787472 is an abundant number, since it is smaller than the sum of its proper divisors (21830288).

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

13787472 is a wasteful number, since it uses less digits than its factorization.

13787472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287250 (or 287244 counting only the distinct ones).

The product of its digits is 65856, while the sum is 39.

The square root of 13787472 is about 3713.1485292134. The cubic root of 13787472 is about 239.7884246487.

The spelling of 13787472 in words is "thirteen million, seven hundred eighty-seven thousand, four hundred seventy-two".