13707691 has 16 divisors (see below), whose sum is σ = 14774400. Its totient is φ = 12694528.

The previous prime is 13707689. The next prime is 13707713. The reversal of 13707691 is 19670731.

It is a happy number.

13707691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13707691 - 2¹ = 13707689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13707601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121251 + ... + 121363.

It is an arithmetic number, because the mean of its divisors is an integer number (923400).

Almost surely, 2^13707691 is an apocalyptic number.

13707691 is a deficient number, since it is larger than the sum of its proper divisors (1066709).

13707691 is a wasteful number, since it uses less digits than its factorization.

13707691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 13707691 is about 3702.3899038324. The cubic root of 13707691 is about 239.3250189580.

The spelling of 13707691 in words is "thirteen million, seven hundred seven thousand, six hundred ninety-one".