18696850 has 12 divisors (see below), whose sum is σ = 34776234. Its totient is φ = 7478720.

The previous prime is 18696841. The next prime is 18696857. The reversal of 18696850 is 5869681.

It can be written as a sum of positive squares in 3 ways, for example, as 14130081 + 4566769 = 3759^2 + 2137^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18696797 and 18696806.

It is not an unprimeable number, because it can be changed into a prime (18696857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 186919 + ... + 187018.

Almost surely, 2^18696850 is an apocalyptic number.

18696850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18696850 is a deficient number, since it is larger than the sum of its proper divisors (16079384).

18696850 is a wasteful number, since it uses less digits than its factorization.

18696850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373949 (or 373944 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 18696850 is about 4323.9854301327. The cubic root of 18696850 is about 265.4133811634.

The spelling of 18696850 in words is "eighteen million, six hundred ninety-six thousand, eight hundred fifty".