90982289 has 4 divisors (see below), whose sum is σ = 91787556. Its totient is φ = 90177024.

The previous prime is 90982267. The next prime is 90982313. The reversal of 90982289 is 98228909.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6801664 + 84180625 = 2608^2 + 9175^2 .

It is a cyclic number.

It is not a de Polignac number, because 90982289 - 2²⁴ = 74205073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90982789) 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 3 ways as a sum of consecutive naturals, for example, 402464 + ... + 402689.

It is an arithmetic number, because the mean of its divisors is an integer number (22946889).

Almost surely, 2^90982289 is an apocalyptic number.

It is an amenable number.

90982289 is a deficient number, since it is larger than the sum of its proper divisors (805267).

90982289 is a wasteful number, since it uses less digits than its factorization.

90982289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805266.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 90982289 is about 9538.4636603596. The cubic root of 90982289 is about 449.7649620332.

The spelling of 90982289 in words is "ninety million, nine hundred eighty-two thousand, two hundred eighty-nine".