13320705 has 8 divisors (see below), whose sum is σ = 21313152. Its totient is φ = 7104368.

The previous prime is 13320683. The next prime is 13320709. The reversal of 13320705 is 50702331.

It is a happy number.

13320705 is digitally balanced in base 3, 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 cyclic number.

It is not a de Polignac number, because 13320705 - 2¹⁸ = 13058561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13320709) 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, 444009 + ... + 444038.

It is an arithmetic number, because the mean of its divisors is an integer number (2664144).

Almost surely, 2^13320705 is an apocalyptic number.

13320705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13320705 is a deficient number, since it is larger than the sum of its proper divisors (7992447).

13320705 is an equidigital number, since it uses as much as digits as its factorization.

13320705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888055.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 13320705 is about 3649.7541013060. The cubic root of 13320705 is about 237.0513339283.

The spelling of 13320705 in words is "thirteen million, three hundred twenty thousand, seven hundred five".