13678693 has 12 divisors (see below), whose sum is σ = 16848972. Its totient is φ = 11034240.

The previous prime is 13678673. The next prime is 13678699. The reversal of 13678693 is 39687631.

It can be written as a sum of positive squares in 2 ways, for example, as 4235364 + 9443329 = 2058^2 + 3073^2 .

It is not a de Polignac number, because 13678693 - 2⁵ = 13678661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13678699) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7378 + ... + 9043.

It is an arithmetic number, because the mean of its divisors is an integer number (1404081).

Almost surely, 2^13678693 is an apocalyptic number.

It is an amenable number.

13678693 is a deficient number, since it is larger than the sum of its proper divisors (3170279).

13678693 is a wasteful number, since it uses less digits than its factorization.

13678693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16452 (or 16445 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 13678693 is about 3698.4717113965. The cubic root of 13678693 is about 239.1561394005.

The spelling of 13678693 in words is "thirteen million, six hundred seventy-eight thousand, six hundred ninety-three".