90836886 has 48 divisors (see below), whose sum is σ = 214064640. Its totient is φ = 25618320.

The previous prime is 90836881. The next prime is 90836909. The reversal of 90836886 is 68863809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90836881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21271 + ... + 25181.

It is an arithmetic number, because the mean of its divisors is an integer number (4459680).

Almost surely, 2^90836886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90836886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107032320).

90836886 is an abundant number, since it is smaller than the sum of its proper divisors (123227754).

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

90836886 is a wasteful number, since it uses less digits than its factorization.

90836886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009 (or 4002 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 90836886 is about 9530.8386829282. The cubic root of 90836886 is about 449.5252375603.

The spelling of 90836886 in words is "ninety million, eight hundred thirty-six thousand, eight hundred eighty-six".