13993746 has 16 divisors (see below), whose sum is σ = 30140544. Its totient is φ = 4305744.

The previous prime is 13993739. The next prime is 13993753. The reversal of 13993746 is 64739931.

It is an interprime number because it is at equal distance from previous prime (13993739) and next prime (13993753).

It is a super-2 number, since 2×13993746² = 391649854225032, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13993698 and 13993707.

It is an unprimeable number.

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, 89626 + ... + 89781.

It is an arithmetic number, because the mean of its divisors is an integer number (1883784).

Almost surely, 2^13993746 is an apocalyptic number.

13993746 is an abundant number, since it is smaller than the sum of its proper divisors (16146798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13993746 is a wasteful number, since it uses less digits than its factorization.

13993746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179425.

The product of its digits is 122472, while the sum is 42.

The square root of 13993746 is about 3740.8215675170. The cubic root of 13993746 is about 240.9783329063.

The spelling of 13993746 in words is "thirteen million, nine hundred ninety-three thousand, seven hundred forty-six".