90836663 has 4 divisors (see below), whose sum is σ = 95617560. Its totient is φ = 86055768.

The previous prime is 90836659. The next prime is 90836699. The reversal of 90836663 is 36663809.

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

It is a cyclic number.

It is not a de Polignac number, because 90836663 - 2² = 90836659 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 90836663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90836063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2390420 + ... + 2390457.

It is an arithmetic number, because the mean of its divisors is an integer number (23904390).

Almost surely, 2^90836663 is an apocalyptic number.

90836663 is a deficient number, since it is larger than the sum of its proper divisors (4780897).

90836663 is a wasteful number, since it uses less digits than its factorization.

90836663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4780896.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 90836663 is about 9530.8269840555. The cubic root of 90836663 is about 449.5248697060.

The spelling of 90836663 in words is "ninety million, eight hundred thirty-six thousand, six hundred sixty-three".