13687074 has 24 divisors (see below), whose sum is σ = 31400460. Its totient is φ = 4293888.

The previous prime is 13687073. The next prime is 13687081. The reversal of 13687074 is 47078631.

It can be written as a sum of positive squares in 2 ways, for example, as 12552849 + 1134225 = 3543^2 + 1065^2 .

It is not an unprimeable number, because it can be changed into a prime (13687073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22059 + ... + 22670.

Almost surely, 2^13687074 is an apocalyptic number.

13687074 is an abundant number, since it is smaller than the sum of its proper divisors (17713386).

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

13687074 is a wasteful number, since it uses less digits than its factorization.

13687074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44754 (or 44751 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 13687074 is about 3699.6045734646. The cubic root of 13687074 is about 239.2049734614.

The spelling of 13687074 in words is "thirteen million, six hundred eighty-seven thousand, seventy-four".