13720966 has 8 divisors (see below), whose sum is σ = 23521680. Its totient is φ = 5880408.

The previous prime is 13720933. The next prime is 13721033. The reversal of 13720966 is 66902731.

13720966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 490021 + ... + 490048.

It is an arithmetic number, because the mean of its divisors is an integer number (2940210).

Almost surely, 2^13720966 is an apocalyptic number.

13720966 is a deficient number, since it is larger than the sum of its proper divisors (9800714).

13720966 is an equidigital number, since it uses as much as digits as its factorization.

13720966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980078.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 13720966 is about 3704.1822309384. The cubic root of 13720966 is about 239.4022508953.

The spelling of 13720966 in words is "thirteen million, seven hundred twenty thousand, nine hundred sixty-six".