90348233 has 4 divisors (see below), whose sum is σ = 90445188. Its totient is φ = 90251280.

The previous prime is 90348221. The next prime is 90348257. The reversal of 90348233 is 33284309.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33284309 = 89 ⋅373981.

It can be written as a sum of positive squares in 2 ways, for example, as 71961289 + 18386944 = 8483^2 + 4288^2 .

It is a cyclic number.

It is not a de Polignac number, because 90348233 - 2¹⁸ = 90086089 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 90348233.

It is not an unprimeable number, because it can be changed into a prime (90318233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47066 + ... + 48947.

It is an arithmetic number, because the mean of its divisors is an integer number (22611297).

Almost surely, 2^90348233 is an apocalyptic number.

It is an amenable number.

90348233 is a deficient number, since it is larger than the sum of its proper divisors (96955).

90348233 is an equidigital number, since it uses as much as digits as its factorization.

90348233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96954.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 90348233 is about 9505.1687517897. The cubic root of 90348233 is about 448.7177207974.

The spelling of 90348233 in words is "ninety million, three hundred forty-eight thousand, two hundred thirty-three".