13300721 has 8 divisors (see below), whose sum is σ = 15488064. Its totient is φ = 11185200.

The previous prime is 13300711. The next prime is 13300733. The reversal of 13300721 is 12700331.

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 13300721 - 2⁶ = 13300657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13300721.

It is not an unprimeable number, because it can be changed into a prime (13300711) 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, 17555 + ... + 18296.

It is an arithmetic number, because the mean of its divisors is an integer number (1936008).

Almost surely, 2^13300721 is an apocalyptic number.

It is an amenable number.

13300721 is a deficient number, since it is larger than the sum of its proper divisors (2187343).

13300721 is an equidigital number, since it uses as much as digits as its factorization.

13300721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35911.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 13300721 is about 3647.0153550540. The cubic root of 13300721 is about 236.9327314770.

The spelling of 13300721 in words is "thirteen million, three hundred thousand, seven hundred twenty-one".