13854389 has 2 divisors, whose sum is σ = 13854390. Its totient is φ = 13854388.

The previous prime is 13854377. The next prime is 13854397. The reversal of 13854389 is 98345831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12888100 + 966289 = 3590^2 + 983^2 .

It is a cyclic number.

It is not a de Polignac number, because 13854389 - 2²⁰ = 12805813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13854089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6927194 + 6927195.

It is an arithmetic number, because the mean of its divisors is an integer number (6927195).

Almost surely, 2^13854389 is an apocalyptic number.

It is an amenable number.

13854389 is a deficient number, since it is larger than the sum of its proper divisors (1).

13854389 is an equidigital number, since it uses as much as digits as its factorization.

13854389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 13854389 is about 3722.1484387380. The cubic root of 13854389 is about 240.1757335609.

The spelling of 13854389 in words is "thirteen million, eight hundred fifty-four thousand, three hundred eighty-nine".