13980993 has 8 divisors (see below), whose sum is σ = 20075328. Its totient is φ = 8603664.

The previous prime is 13980991. The next prime is 13981013. The reversal of 13980993 is 39908931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13980993 - 2¹ = 13980991 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13980991) 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, 179205 + ... + 179282.

It is an arithmetic number, because the mean of its divisors is an integer number (2509416).

Almost surely, 2^13980993 is an apocalyptic number.

13980993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13980993 is a deficient number, since it is larger than the sum of its proper divisors (6094335).

13980993 is a wasteful number, since it uses less digits than its factorization.

13980993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358503.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 13980993 is about 3739.1166069006. The cubic root of 13980993 is about 240.9051066064.

The spelling of 13980993 in words is "thirteen million, nine hundred eighty thousand, nine hundred ninety-three".