13403399 has 2 divisors, whose sum is σ = 13403400. Its totient is φ = 13403398.

The previous prime is 13403393. The next prime is 13403431. The reversal of 13403399 is 99330431.

It is an a-pointer prime, because the next prime (13403431) can be obtained adding 13403399 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13403399 - 2¹² = 13399303 is a prime.

It is a super-2 number, since 2×13403399² = 359302209506402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13403393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6701699 + 6701700.

It is an arithmetic number, because the mean of its divisors is an integer number (6701700).

Almost surely, 2^13403399 is an apocalyptic number.

13403399 is a deficient number, since it is larger than the sum of its proper divisors (1).

13403399 is an equidigital number, since it uses as much as digits as its factorization.

13403399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 13403399 is about 3661.0652821276. The cubic root of 13403399 is about 237.5408550215.

The spelling of 13403399 in words is "thirteen million, four hundred three thousand, three hundred ninety-nine".