13857850 has 12 divisors (see below), whose sum is σ = 25775694. Its totient is φ = 5543120.

The previous prime is 13857841. The next prime is 13857871. The reversal of 13857850 is 5875831.

It can be written as a sum of positive squares in 3 ways, for example, as 9941409 + 3916441 = 3153^2 + 1979^2 .

It is an unprimeable number.

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, 138529 + ... + 138628.

Almost surely, 2^13857850 is an apocalyptic number.

13857850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13857850 is a deficient number, since it is larger than the sum of its proper divisors (11917844).

13857850 is a wasteful number, since it uses less digits than its factorization.

13857850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277169 (or 277164 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 13857850 is about 3722.6133293696. The cubic root of 13857850 is about 240.1957315318.

The spelling of 13857850 in words is "thirteen million, eight hundred fifty-seven thousand, eight hundred fifty".