13849879 has 4 divisors (see below), whose sum is σ = 14578840. Its totient is φ = 13120920.

The previous prime is 13849859. The next prime is 13849889. The reversal of 13849879 is 97894831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97894831 = 23 ⋅4256297.

It is a cyclic number.

It is not a de Polignac number, because 13849879 - 2⁷ = 13849751 is a prime.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 364452 + ... + 364489.

It is an arithmetic number, because the mean of its divisors is an integer number (3644710).

Almost surely, 2^13849879 is an apocalyptic number.

13849879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13849879 is a deficient number, since it is larger than the sum of its proper divisors (728961).

13849879 is an equidigital number, since it uses as much as digits as its factorization.

13849879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728960.

The product of its digits is 435456, while the sum is 49.

The square root of 13849879 is about 3721.5425565214. The cubic root of 13849879 is about 240.1496693749.

The spelling of 13849879 in words is "thirteen million, eight hundred forty-nine thousand, eight hundred seventy-nine".