13872829 has 2 divisors, whose sum is σ = 13872830. Its totient is φ = 13872828.

The previous prime is 13872809. The next prime is 13872851. The reversal of 13872829 is 92827831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13860729 + 12100 = 3723^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 13872829 - 2⁵ = 13872797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13872791 and 13872800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13872809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6936414 + 6936415.

It is an arithmetic number, because the mean of its divisors is an integer number (6936415).

Almost surely, 2^13872829 is an apocalyptic number.

It is an amenable number.

13872829 is a deficient number, since it is larger than the sum of its proper divisors (1).

13872829 is an equidigital number, since it uses as much as digits as its factorization.

13872829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 40.

The square root of 13872829 is about 3724.6246790784. The cubic root of 13872829 is about 240.2822431796.

The spelling of 13872829 in words is "thirteen million, eight hundred seventy-two thousand, eight hundred twenty-nine".