13971606 has 16 divisors (see below), whose sum is σ = 30483648. Its totient is φ = 4233800.

The previous prime is 13971599. The next prime is 13971667. The reversal of 13971606 is 60617931.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 in 7 ways as a sum of consecutive naturals, for example, 105780 + ... + 105911.

It is an arithmetic number, because the mean of its divisors is an integer number (1905228).

Almost surely, 2^13971606 is an apocalyptic number.

13971606 is an abundant number, since it is smaller than the sum of its proper divisors (16512042).

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

13971606 is a wasteful number, since it uses less digits than its factorization.

13971606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211707.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 13971606 is about 3737.8611531195. The cubic root of 13971606 is about 240.8511790461.

It can be divided in two parts, 1397 and 1606, that added together give a palindrome (3003).

The spelling of 13971606 in words is "thirteen million, nine hundred seventy-one thousand, six hundred six".