13393985 has 8 divisors (see below), whose sum is σ = 17534016. Its totient is φ = 9741040.

The previous prime is 13393979. The next prime is 13393997. The reversal of 13393985 is 58939331.

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

It is not a de Polignac number, because 13393985 - 2¹⁶ = 13328449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121709 + ... + 121818.

It is an arithmetic number, because the mean of its divisors is an integer number (2191752).

Almost surely, 2^13393985 is an apocalyptic number.

It is an amenable number.

13393985 is a deficient number, since it is larger than the sum of its proper divisors (4140031).

13393985 is a wasteful number, since it uses less digits than its factorization.

13393985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243543.

The product of its digits is 87480, while the sum is 41.

The square root of 13393985 is about 3659.7793649344. The cubic root of 13393985 is about 237.4852289983.

The spelling of 13393985 in words is "thirteen million, three hundred ninety-three thousand, nine hundred eighty-five".