13859929 has 2 divisors, whose sum is σ = 13859930. Its totient is φ = 13859928.

The previous prime is 13859917. The next prime is 13859933. The reversal of 13859929 is 92995831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12616704 + 1243225 = 3552^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 13859929 - 2¹¹ = 13857881 is a prime.

It is not a weakly prime, because it can be changed into another prime (13856929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6929964 + 6929965.

It is an arithmetic number, because the mean of its divisors is an integer number (6929965).

Almost surely, 2^13859929 is an apocalyptic number.

It is an amenable number.

13859929 is a deficient number, since it is larger than the sum of its proper divisors (1).

13859929 is an equidigital number, since it uses as much as digits as its factorization.

13859929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 46.

The square root of 13859929 is about 3722.8925582133. The cubic root of 13859929 is about 240.2077425811.

The spelling of 13859929 in words is "thirteen million, eight hundred fifty-nine thousand, nine hundred twenty-nine".