90717032 has 48 divisors (see below), whose sum is σ = 209519460. Its totient is φ = 36589056.

The previous prime is 90717031. The next prime is 90717047. The reversal of 90717032 is 23071709.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85636516 + 5080516 = 9254^2 + 2254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90716986 and 90717004.

It is not an unprimeable number, because it can be changed into a prime (90717031) 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 11 ways as a sum of consecutive naturals, for example, 143 + ... + 13470.

Almost surely, 2^90717032 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 90717032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104759730).

90717032 is an abundant number, since it is smaller than the sum of its proper divisors (118802428).

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

90717032 is a wasteful number, since it uses less digits than its factorization.

90717032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13650 (or 13639 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 90717032 is about 9524.5489132032. The cubic root of 90717032 is about 449.3274430533.

The spelling of 90717032 in words is "ninety million, seven hundred seventeen thousand, thirty-two".