13829999 has 4 divisors (see below), whose sum is σ = 14276160. Its totient is φ = 13383840.

The previous prime is 13829987. The next prime is 13830001. The reversal of 13829999 is 99992831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13829999 - 2¹⁶ = 13764463 is a prime.

It is a Duffinian number.

13829999 is a modest number, since divided by 9999 gives 1382 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13829099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223034 + ... + 223095.

It is an arithmetic number, because the mean of its divisors is an integer number (3569040).

Almost surely, 2^13829999 is an apocalyptic number.

13829999 is a deficient number, since it is larger than the sum of its proper divisors (446161).

13829999 is an equidigital number, since it uses as much as digits as its factorization.

13829999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446160.

The product of its digits is 314928, while the sum is 50.

The square root of 13829999 is about 3718.8706619080. The cubic root of 13829999 is about 240.0347114146.

The spelling of 13829999 in words is "thirteen million, eight hundred twenty-nine thousand, nine hundred ninety-nine".