13878608 has 10 divisors (see below), whose sum is σ = 26889834. Its totient is φ = 6939296.

The previous prime is 13878563. The next prime is 13878619. The reversal of 13878608 is 80687831.

It can be written as a sum of positive squares in only one way, i.e., 12902464 + 976144 = 3592^2 + 988^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 433691 + ... + 433722.

Almost surely, 2^13878608 is an apocalyptic number.

It is an amenable number.

13878608 is a deficient number, since it is larger than the sum of its proper divisors (13011226).

13878608 is an equidigital number, since it uses as much as digits as its factorization.

13878608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867421 (or 867415 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 13878608 is about 3725.4003811671. The cubic root of 13878608 is about 240.3156033139.

The spelling of 13878608 in words is "thirteen million, eight hundred seventy-eight thousand, six hundred eight".