13703681 has 4 divisors (see below), whose sum is σ = 13811712. Its totient is φ = 13595652.

The previous prime is 13703671. The next prime is 13703687. The reversal of 13703681 is 18630731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13703681 is a prime.

It is a super-2 number, since 2×13703681² = 375581745899522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13703687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53825 + ... + 54078.

It is an arithmetic number, because the mean of its divisors is an integer number (3452928).

Almost surely, 2^13703681 is an apocalyptic number.

It is an amenable number.

13703681 is a deficient number, since it is larger than the sum of its proper divisors (108031).

13703681 is a wasteful number, since it uses less digits than its factorization.

13703681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108030.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 13703681 is about 3701.8483221223. The cubic root of 13703681 is about 239.3016795806.

The spelling of 13703681 in words is "thirteen million, seven hundred three thousand, six hundred eighty-one".