12785898 has 24 divisors (see below), whose sum is σ = 26993088. Its totient is φ = 4036968.

The previous prime is 12785869. The next prime is 12785933. The reversal of 12785898 is 89858721.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 786 + ... + 5117.

It is an arithmetic number, because the mean of its divisors is an integer number (1124712).

Almost surely, 2^12785898 is an apocalyptic number.

12785898 is an abundant number, since it is smaller than the sum of its proper divisors (14207190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12785898 is a wasteful number, since it uses less digits than its factorization.

12785898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5946 (or 5927 counting only the distinct ones).

The product of its digits is 322560, while the sum is 48.

The square root of 12785898 is about 3575.7374064660. The cubic root of 12785898 is about 233.8354822854.

The spelling of 12785898 in words is "twelve million, seven hundred eighty-five thousand, eight hundred ninety-eight".