13722008 has 16 divisors (see below), whose sum is σ = 25995480. Its totient is φ = 6789888.

The previous prime is 13721993. The next prime is 13722019. The reversal of 13722008 is 80022731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8066 + ... + 9617.

Almost surely, 2^13722008 is an apocalyptic number.

It is an amenable number.

13722008 is a deficient number, since it is larger than the sum of its proper divisors (12273472).

13722008 is a wasteful number, since it uses less digits than its factorization.

13722008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17786 (or 17782 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 13722008 is about 3704.3228800956. The cubic root of 13722008 is about 239.4083109844.

Adding to 13722008 its reverse (80022731), we get a palindrome (93744739).

The spelling of 13722008 in words is "thirteen million, seven hundred twenty-two thousand, eight".