13983660 has 36 divisors (see below), whose sum is σ = 42417648. Its totient is φ = 3728928.

The previous prime is 13983647. The next prime is 13983667. The reversal of 13983660 is 6638931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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 (13983667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38664 + ... + 39023.

It is an arithmetic number, because the mean of its divisors is an integer number (1178268).

Almost surely, 2^13983660 is an apocalyptic number.

13983660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13983660 is an abundant number, since it is smaller than the sum of its proper divisors (28433988).

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

13983660 is a wasteful number, since it uses less digits than its factorization.

13983660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77702 (or 77697 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 13983660 is about 3739.4732249342. The cubic root of 13983660 is about 240.9204239035.

The spelling of 13983660 in words is "thirteen million, nine hundred eighty-three thousand, six hundred sixty".