13993706 has 8 divisors (see below), whose sum is σ = 21903264. Its totient is φ = 6692620.

The previous prime is 13993699. The next prime is 13993711. The reversal of 13993706 is 60739931.

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

It is a super-2 number, since 2×13993706² = 391647615228872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13993706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152060 + ... + 152151.

It is an arithmetic number, because the mean of its divisors is an integer number (2737908).

Almost surely, 2^13993706 is an apocalyptic number.

13993706 is a deficient number, since it is larger than the sum of its proper divisors (7909558).

13993706 is a wasteful number, since it uses less digits than its factorization.

13993706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304236.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 13993706 is about 3740.8162210940. The cubic root of 13993706 is about 240.9781033003.

The spelling of 13993706 in words is "thirteen million, nine hundred ninety-three thousand, seven hundred six".