13805606 has 4 divisors (see below), whose sum is σ = 20708412. Its totient is φ = 6902802.

The previous prime is 13805593. The next prime is 13805629. The reversal of 13805606 is 60650831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60650831 = 19 ⋅3192149.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3451400 + ... + 3451403.

It is an arithmetic number, because the mean of its divisors is an integer number (5177103).

Almost surely, 2^13805606 is an apocalyptic number.

13805606 is a deficient number, since it is larger than the sum of its proper divisors (6902806).

13805606 is an equidigital number, since it uses as much as digits as its factorization.

13805606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6902805.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 13805606 is about 3715.5895898229. The cubic root of 13805606 is about 239.8935059937.

The spelling of 13805606 in words is "thirteen million, eight hundred five thousand, six hundred six".