90939283 has 4 divisors (see below), whose sum is σ = 91633608. Its totient is φ = 90244960.

The previous prime is 90939269. The next prime is 90939293. The reversal of 90939283 is 38293909.

It is a happy number.

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 90939283 - 2²⁵ = 57384851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90939203) 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 3 ways as a sum of consecutive naturals, for example, 346966 + ... + 347227.

It is an arithmetic number, because the mean of its divisors is an integer number (22908402).

Almost surely, 2^90939283 is an apocalyptic number.

90939283 is a deficient number, since it is larger than the sum of its proper divisors (694325).

90939283 is a wasteful number, since it uses less digits than its factorization.

90939283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694324.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 90939283 is about 9536.2090476247. The cubic root of 90939283 is about 449.6940850869.

The spelling of 90939283 in words is "ninety million, nine hundred thirty-nine thousand, two hundred eighty-three".