13389403 has 2 divisors, whose sum is σ = 13389404. Its totient is φ = 13389402.

The previous prime is 13389391. The next prime is 13389413. The reversal of 13389403 is 30498331.

It is a strong prime.

It is an emirp because it is prime and its reverse (30498331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13389403 is a prime.

It is a super-2 number, since 2×13389403² = 358552225392818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13389413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6694701 + 6694702.

It is an arithmetic number, because the mean of its divisors is an integer number (6694702).

Almost surely, 2^13389403 is an apocalyptic number.

13389403 is a deficient number, since it is larger than the sum of its proper divisors (1).

13389403 is an equidigital number, since it uses as much as digits as its factorization.

13389403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 13389403 is about 3659.1533173673. The cubic root of 13389403 is about 237.4581451636.

The spelling of 13389403 in words is "thirteen million, three hundred eighty-nine thousand, four hundred three".