13380813 has 6 divisors (see below), whose sum is σ = 19327854. Its totient is φ = 8920536.

The previous prime is 13380799. The next prime is 13380817. The reversal of 13380813 is 31808331.

13380813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9108324 + 4272489 = 3018^2 + 2067^2 .

It is not a de Polignac number, because 13380813 - 2⁴ = 13380797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13380817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 743370 + ... + 743387.

It is an arithmetic number, because the mean of its divisors is an integer number (3221309).

Almost surely, 2^13380813 is an apocalyptic number.

It is an amenable number.

13380813 is a deficient number, since it is larger than the sum of its proper divisors (5947041).

13380813 is a wasteful number, since it uses less digits than its factorization.

13380813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486763 (or 1486760 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13380813 is about 3657.9793602479. The cubic root of 13380813 is about 237.4073537074.

The spelling of 13380813 in words is "thirteen million, three hundred eighty thousand, eight hundred thirteen".