890136856 has 32 divisors (see below), whose sum is σ = 1910592000. Its totient is φ = 380856096.

The previous prime is 890136853. The next prime is 890136889. The reversal of 890136856 is 658631098.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890136853) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21825 + ... + 47503.

It is an arithmetic number, because the mean of its divisors is an integer number (59706000).

Almost surely, 2^890136856 is an apocalyptic number.

It is an amenable number.

890136856 is an abundant number, since it is smaller than the sum of its proper divisors (1020455144).

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

890136856 is a wasteful number, since it uses less digits than its factorization.

890136856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26311 (or 26307 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 890136856 is about 29835.1614039542. The cubic root of 890136856 is about 961.9494731294.

The spelling of 890136856 in words is "eight hundred ninety million, one hundred thirty-six thousand, eight hundred fifty-six".