13882257 has 6 divisors (see below), whose sum is σ = 20052162. Its totient is φ = 9254832.

The previous prime is 13882247. The next prime is 13882259. The reversal of 13882257 is 75228831.

It can be written as a sum of positive squares in only one way, i.e., 13660416 + 221841 = 3696^2 + 471^2 .

It is not a de Polignac number, because 13882257 - 2⁴ = 13882241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13882259) 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 5 ways as a sum of consecutive naturals, for example, 771228 + ... + 771245.

It is an arithmetic number, because the mean of its divisors is an integer number (3342027).

Almost surely, 2^13882257 is an apocalyptic number.

It is an amenable number.

13882257 is a deficient number, since it is larger than the sum of its proper divisors (6169905).

13882257 is a wasteful number, since it uses less digits than its factorization.

13882257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542479 (or 1542476 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 13882257 is about 3725.8900949974. The cubic root of 13882257 is about 240.3366629378.

The spelling of 13882257 in words is "thirteen million, eight hundred eighty-two thousand, two hundred fifty-seven".