90984959 has 8 divisors (see below), whose sum is σ = 98757120. Its totient is φ = 83323296.

The previous prime is 90984931. The next prime is 90985007. The reversal of 90984959 is 95948909.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90984959 - 2⁸ = 90984703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90984959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90984359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25904 + ... + 29205.

It is an arithmetic number, because the mean of its divisors is an integer number (12344640).

Almost surely, 2^90984959 is an apocalyptic number.

90984959 is a deficient number, since it is larger than the sum of its proper divisors (7772161).

90984959 is a wasteful number, since it uses less digits than its factorization.

90984959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55249.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 90984959 is about 9538.6036189790. The cubic root of 90984959 is about 449.7693616466.

The spelling of 90984959 in words is "ninety million, nine hundred eighty-four thousand, nine hundred fifty-nine".