90783522 has 24 divisors (see below), whose sum is σ = 198442764. Its totient is φ = 29992704.

The previous prime is 90783521. The next prime is 90783551. The reversal of 90783522 is 22538709.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 89699841 + 1083681 = 9471^2 + 1041^2 .

It is not an unprimeable number, because it can be changed into a prime (90783521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20283 + ... + 24350.

Almost surely, 2^90783522 is an apocalyptic number.

90783522 is an abundant number, since it is smaller than the sum of its proper divisors (107659242).

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

90783522 is a wasteful number, since it uses less digits than its factorization.

90783522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44754 (or 44751 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 90783522 is about 9528.0387278810. The cubic root of 90783522 is about 449.4371926963.

The spelling of 90783522 in words is "ninety million, seven hundred eighty-three thousand, five hundred twenty-two".