13694729 has 8 divisors (see below), whose sum is σ = 14472960. Its totient is φ = 12931776.

The previous prime is 13694671. The next prime is 13694743. The reversal of 13694729 is 92749631.

13694729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13694729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13694749) 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, 1952 + ... + 5585.

It is an arithmetic number, because the mean of its divisors is an integer number (1809120).

Almost surely, 2^13694729 is an apocalyptic number.

It is an amenable number.

13694729 is a deficient number, since it is larger than the sum of its proper divisors (778231).

13694729 is an equidigital number, since it uses as much as digits as its factorization.

13694729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639.

The product of its digits is 81648, while the sum is 41.

The square root of 13694729 is about 3700.6389988757. The cubic root of 13694729 is about 239.2495598793.

The spelling of 13694729 in words is "thirteen million, six hundred ninety-four thousand, seven hundred twenty-nine".