13856602 has 4 divisors (see below), whose sum is σ = 20784906. Its totient is φ = 6928300.

The previous prime is 13856593. The next prime is 13856617. The reversal of 13856602 is 20665831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20665831 = 1489 ⋅13879.

It can be written as a sum of positive squares in only one way, i.e., 13697401 + 159201 = 3701^2 + 399^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3464149 + ... + 3464152.

Almost surely, 2^13856602 is an apocalyptic number.

13856602 is a deficient number, since it is larger than the sum of its proper divisors (6928304).

13856602 is an equidigital number, since it uses as much as digits as its factorization.

13856602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6928303.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 13856602 is about 3722.4457014173. The cubic root of 13856602 is about 240.1885208589.

The spelling of 13856602 in words is "thirteen million, eight hundred fifty-six thousand, six hundred two".