890134836 has 24 divisors (see below), whose sum is σ = 2080209600. Its totient is φ = 296250432.

The previous prime is 890134823. The next prime is 890134849. The reversal of 890134836 is 638431098.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (890134823) and next prime (890134849).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 49561 + ... + 65088.

It is an arithmetic number, because the mean of its divisors is an integer number (86675400).

Almost surely, 2^890134836 is an apocalyptic number.

It is an amenable number.

890134836 is an abundant number, since it is smaller than the sum of its proper divisors (1190074764).

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

890134836 is a wasteful number, since it uses less digits than its factorization.

890134836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115303 (or 115301 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 890134836 is about 29835.1275512608. The cubic root of 890134836 is about 961.9487454737.

The spelling of 890134836 in words is "eight hundred ninety million, one hundred thirty-four thousand, eight hundred thirty-six".