13987080 has 96 divisors (see below), whose sum is σ = 47174400. Its totient is φ = 3727296.

The previous prime is 13987079. The next prime is 13987081. The reversal of 13987080 is 8078931.

It is an interprime number because it is at equal distance from previous prime (13987079) and next prime (13987081).

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 (13987081) 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 23 ways as a sum of consecutive naturals, for example, 9001 + ... + 10439.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^13987080 is an apocalyptic number.

13987080 is a gapful number since it is divisible by the number (10) 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 13987080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23587200).

13987080 is an abundant number, since it is smaller than the sum of its proper divisors (33187320).

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

13987080 is a wasteful number, since it uses less digits than its factorization.

13987080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465 (or 1449 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 13987080 is about 3739.9304806373. The cubic root of 13987080 is about 240.9400630320.

The spelling of 13987080 in words is "thirteen million, nine hundred eighty-seven thousand, eighty".