13849399 has 2 divisors, whose sum is σ = 13849400. Its totient is φ = 13849398.

The previous prime is 13849391. The next prime is 13849421. The reversal of 13849399 is 99394831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13849399 - 2³ = 13849391 is a prime.

It is a super-2 number, since 2×13849399² = 383611705322402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13849391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6924699 + 6924700.

It is an arithmetic number, because the mean of its divisors is an integer number (6924700).

Almost surely, 2^13849399 is an apocalyptic number.

13849399 is a deficient number, since it is larger than the sum of its proper divisors (1).

13849399 is an equidigital number, since it uses as much as digits as its factorization.

13849399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 46.

The square root of 13849399 is about 3721.4780665752. The cubic root of 13849399 is about 240.1468950264.

The spelling of 13849399 in words is "thirteen million, eight hundred forty-nine thousand, three hundred ninety-nine".