90616212 has 48 divisors (see below), whose sum is σ = 238929600. Its totient is φ = 29691360.

The previous prime is 90616177. The next prime is 90616217. The reversal of 90616212 is 21261609.

It is a super-2 number, since 2×90616212² = 16422595754457888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90616217) 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 15 ways as a sum of consecutive naturals, for example, 739 + ... + 13482.

It is an arithmetic number, because the mean of its divisors is an integer number (4977700).

Almost surely, 2^90616212 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 90616212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119464800).

90616212 is an abundant number, since it is smaller than the sum of its proper divisors (148313388).

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

90616212 is a wasteful number, since it uses less digits than its factorization.

90616212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14293 (or 14285 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 90616212 is about 9519.2548027669. The cubic root of 90616212 is about 449.1609253139.

The spelling of 90616212 in words is "ninety million, six hundred sixteen thousand, two hundred twelve".