13849899 has 24 divisors (see below), whose sum is σ = 21800448. Its totient is φ = 7796880.

The previous prime is 13849889. The next prime is 13849903. The reversal of 13849899 is 99894831.

It is a happy number.

It is not a de Polignac number, because 13849899 - 2⁸ = 13849643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13849859) 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 in 23 ways as a sum of consecutive naturals, for example, 9774 + ... + 11100.

It is an arithmetic number, because the mean of its divisors is an integer number (908352).

Almost surely, 2^13849899 is an apocalyptic number.

13849899 is a deficient number, since it is larger than the sum of its proper divisors (7950549).

13849899 is a wasteful number, since it uses less digits than its factorization.

13849899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415 (or 1408 counting only the distinct ones).

The product of its digits is 559872, while the sum is 51.

The square root of 13849899 is about 3721.5452435783. The cubic root of 13849899 is about 240.1497849714.

The spelling of 13849899 in words is "thirteen million, eight hundred forty-nine thousand, eight hundred ninety-nine".