13857322 has 4 divisors (see below), whose sum is σ = 20785986. Its totient is φ = 6928660.

The previous prime is 13857317. The next prime is 13857343. The reversal of 13857322 is 22375831.

13857322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 9853321 + 4004001 = 3139^2 + 2001^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3464329 + ... + 3464332.

Almost surely, 2^13857322 is an apocalyptic number.

13857322 is a deficient number, since it is larger than the sum of its proper divisors (6928664).

13857322 is an equidigital number, since it uses as much as digits as its factorization.

13857322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6928663.

The product of its digits is 10080, while the sum is 31.

The square root of 13857322 is about 3722.5424107725. The cubic root of 13857322 is about 240.1926809154.

The spelling of 13857322 in words is "thirteen million, eight hundred fifty-seven thousand, three hundred twenty-two".