90806283 has 12 divisors (see below), whose sum is σ = 131247480. Its totient is φ = 60499296.

The previous prime is 90806281. The next prime is 90806293. The reversal of 90806283 is 38260809.

It is not a de Polignac number, because 90806283 - 2¹ = 90806281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90806281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24735 + ... + 28167.

It is an arithmetic number, because the mean of its divisors is an integer number (10937290).

Almost surely, 2^90806283 is an apocalyptic number.

90806283 is a deficient number, since it is larger than the sum of its proper divisors (40441197).

90806283 is a wasteful number, since it uses less digits than its factorization.

90806283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378 (or 6375 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 90806283 is about 9529.2330751220. The cubic root of 90806283 is about 449.4747501183.

The spelling of 90806283 in words is "ninety million, eight hundred six thousand, two hundred eighty-three".