13423688 has 8 divisors (see below), whose sum is σ = 25169430. Its totient is φ = 6711840.

The previous prime is 13423679. The next prime is 13423691. The reversal of 13423688 is 88632431.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9351364 + 4072324 = 3058^2 + 2018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838973 + ... + 838988.

Almost surely, 2^13423688 is an apocalyptic number.

It is an amenable number.

13423688 is a deficient number, since it is larger than the sum of its proper divisors (11745742).

13423688 is a wasteful number, since it uses less digits than its factorization.

13423688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677967 (or 1677963 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 13423688 is about 3663.8351491299. The cubic root of 13423688 is about 237.6606514173.

The spelling of 13423688 in words is "thirteen million, four hundred twenty-three thousand, six hundred eighty-eight".