13947552 has 60 divisors (see below), whose sum is σ = 41026986. Its totient is φ = 4648320.

The previous prime is 13947547. The next prime is 13947553. The reversal of 13947552 is 25574931.

13947552 is a `hidden beast` number, since 13 + 94 + 7 + 552 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12702096 + 1245456 = 3564^2 + 1116^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13947553) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 99 + ... + 5282.

Almost surely, 2^13947552 is an apocalyptic number.

13947552 is a gapful number since it is divisible by the number (12) 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 13947552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20513493).

13947552 is an abundant number, since it is smaller than the sum of its proper divisors (27079434).

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

13947552 is an equidigital number, since it uses as much as digits as its factorization.

13947552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5403 (or 5386 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 13947552 is about 3734.6421515321. The cubic root of 13947552 is about 240.7128804098.

The spelling of 13947552 in words is "thirteen million, nine hundred forty-seven thousand, five hundred fifty-two".