90599983 has 2 divisors, whose sum is σ = 90599984. Its totient is φ = 90599982.

The previous prime is 90599981. The next prime is 90599989. The reversal of 90599983 is 38999509.

It is a weak prime.

It is an emirp because it is prime and its reverse (38999509) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90599983 - 2¹ = 90599981 is a prime.

Together with 90599981, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 90599983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90599981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45299991 + 45299992.

It is an arithmetic number, because the mean of its divisors is an integer number (45299992).

Almost surely, 2^90599983 is an apocalyptic number.

90599983 is a deficient number, since it is larger than the sum of its proper divisors (1).

90599983 is an equidigital number, since it uses as much as digits as its factorization.

90599983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 787320, while the sum is 52.

The square root of 90599983 is about 9518.4023344257. The cubic root of 90599983 is about 449.1341094064.

The spelling of 90599983 in words is "ninety million, five hundred ninety-nine thousand, nine hundred eighty-three".