90536233 has 4 divisors (see below), whose sum is σ = 90858708. Its totient is φ = 90213760.

The previous prime is 90536227. The next prime is 90536239. The reversal of 90536233 is 33263509.

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

It is an interprime number because it is at equal distance from previous prime (90536227) and next prime (90536239).

It can be written as a sum of positive squares in 2 ways, for example, as 67371264 + 23164969 = 8208^2 + 4813^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90536233 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90536195 and 90536204.

It is not an unprimeable number, because it can be changed into a prime (90536239) 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, 160816 + ... + 161377.

It is an arithmetic number, because the mean of its divisors is an integer number (22714677).

Almost surely, 2^90536233 is an apocalyptic number.

It is an amenable number.

90536233 is a deficient number, since it is larger than the sum of its proper divisors (322475).

90536233 is a wasteful number, since it uses less digits than its factorization.

90536233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322474.

The product of its (nonzero) digits is 14580, while the sum is 31.

The square root of 90536233 is about 9515.0529688489. The cubic root of 90536233 is about 449.0287414038.

The spelling of 90536233 in words is "ninety million, five hundred thirty-six thousand, two hundred thirty-three".