13720894 has 8 divisors (see below), whose sum is σ = 22452408. Its totient is φ = 6236760.

The previous prime is 13720891. The next prime is 13720901. The reversal of 13720894 is 49802731.

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 (13720891) 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, 311817 + ... + 311860.

It is an arithmetic number, because the mean of its divisors is an integer number (2806551).

Almost surely, 2^13720894 is an apocalyptic number.

13720894 is a deficient number, since it is larger than the sum of its proper divisors (8731514).

13720894 is a wasteful number, since it uses less digits than its factorization.

13720894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623690.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 13720894 is about 3704.1725121814. The cubic root of 13720894 is about 239.4018321446.

The spelling of 13720894 in words is "thirteen million, seven hundred twenty thousand, eight hundred ninety-four".