90850212 has 72 divisors (see below), whose sum is σ = 239296512. Its totient is φ = 29030400.

The previous prime is 90850189. The next prime is 90850213. The reversal of 90850212 is 21205809.

It is a super-2 number, since 2×90850212² = 16507522040889888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90850213) 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, 141412 + ... + 142052.

Almost surely, 2^90850212 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 90850212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119648256).

90850212 is an abundant number, since it is smaller than the sum of its proper divisors (148446300).

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

90850212 is a wasteful number, since it uses less digits than its factorization.

90850212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 90850212 is about 9531.5377563119. The cubic root of 90850212 is about 449.5472186470.

The spelling of 90850212 in words is "ninety million, eight hundred fifty thousand, two hundred twelve".