13720895 has 8 divisors (see below), whose sum is σ = 16910304. Its totient is φ = 10679904.

The previous prime is 13720891. The next prime is 13720901. The reversal of 13720895 is 59802731.

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

It is a cyclic number.

It is not a de Polignac number, because 13720895 - 2² = 13720891 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 36899 + ... + 37268.

It is an arithmetic number, because the mean of its divisors is an integer number (2113788).

Almost surely, 2^13720895 is an apocalyptic number.

13720895 is a deficient number, since it is larger than the sum of its proper divisors (3189409).

13720895 is an equidigital number, since it uses as much as digits as its factorization.

13720895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74209.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 13720895 is about 3704.1726471643. The cubic root of 13720895 is about 239.4018379606.

The spelling of 13720895 in words is "thirteen million, seven hundred twenty thousand, eight hundred ninety-five".