13940993 has 8 divisors (see below), whose sum is σ = 15301440. Its totient is φ = 12596080.

The previous prime is 13940989. The next prime is 13941007. The reversal of 13940993 is 39904931.

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

It is a cyclic number.

It is not a de Polignac number, because 13940993 - 2² = 13940989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13940903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1958 + ... + 5631.

It is an arithmetic number, because the mean of its divisors is an integer number (1912680).

Almost surely, 2^13940993 is an apocalyptic number.

It is an amenable number.

13940993 is a deficient number, since it is larger than the sum of its proper divisors (1360447).

13940993 is a wasteful number, since it uses less digits than its factorization.

13940993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7767.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 13940993 is about 3733.7639186215. The cubic root of 13940993 is about 240.6751418079.

The spelling of 13940993 in words is "thirteen million, nine hundred forty thousand, nine hundred ninety-three".