13993761 has 8 divisors (see below), whose sum is σ = 18679680. Its totient is φ = 9318512.

The previous prime is 13993757. The next prime is 13993769. The reversal of 13993761 is 16739931.

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 13993761 - 2² = 13993757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13993769) 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, 1195 + ... + 5423.

It is an arithmetic number, because the mean of its divisors is an integer number (2334960).

Almost surely, 2^13993761 is an apocalyptic number.

It is an amenable number.

13993761 is a deficient number, since it is larger than the sum of its proper divisors (4685919).

13993761 is a wasteful number, since it uses less digits than its factorization.

13993761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5335.

The product of its digits is 30618, while the sum is 39.

The square root of 13993761 is about 3740.8235724236. The cubic root of 13993761 is about 240.9784190084.

The spelling of 13993761 in words is "thirteen million, nine hundred ninety-three thousand, seven hundred sixty-one".