19396856 has 16 divisors (see below), whose sum is σ = 36612240. Its totient is φ = 9633600.

The previous prime is 19396849. The next prime is 19396873. The reversal of 19396856 is 65869391.

It is a self number, because there is not a number n which added to its sum of digits gives 19396856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6821 + ... + 9236.

It is an arithmetic number, because the mean of its divisors is an integer number (2288265).

Almost surely, 2^19396856 is an apocalyptic number.

It is an amenable number.

19396856 is a deficient number, since it is larger than the sum of its proper divisors (17215384).

19396856 is a wasteful number, since it uses less digits than its factorization.

19396856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16214 (or 16210 counting only the distinct ones).

The product of its digits is 349920, while the sum is 47.

The square root of 19396856 is about 4404.1861904329. The cubic root of 19396856 is about 268.6852221017.

The spelling of 19396856 in words is "nineteen million, three hundred ninety-six thousand, eight hundred fifty-six".