90323856 has 240 divisors, whose sum is σ = 320604480. Its totient is φ = 24192000.

The previous prime is 90323843. The next prime is 90323879. The reversal of 90323856 is 65832309.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 90323856.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 359731 + ... + 359981.

It is an arithmetic number, because the mean of its divisors is an integer number (1335852).

Almost surely, 2^90323856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90323856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160302240).

90323856 is an abundant number, since it is smaller than the sum of its proper divisors (230280624).

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

90323856 is a wasteful number, since it uses less digits than its factorization.

90323856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 90323856 is about 9503.8863629570. The cubic root of 90323856 is about 448.6773607541.

The spelling of 90323856 in words is "ninety million, three hundred twenty-three thousand, eight hundred fifty-six".