13990006 has 8 divisors (see below), whose sum is σ = 21708720. Its totient is φ = 6753768.

The previous prime is 13990001. The next prime is 13990013. The reversal of 13990006 is 60009931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13990001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120546 + ... + 120661.

It is an arithmetic number, because the mean of its divisors is an integer number (2713590).

Almost surely, 2^13990006 is an apocalyptic number.

13990006 is a deficient number, since it is larger than the sum of its proper divisors (7718714).

13990006 is a wasteful number, since it uses less digits than its factorization.

13990006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241238.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 13990006 is about 3740.3216439232. The cubic root of 13990006 is about 240.9568628565.

Adding to 13990006 its reverse (60009931), we get a palindrome (73999937).

The spelling of 13990006 in words is "thirteen million, nine hundred ninety thousand, six".