90229033 has 2 divisors, whose sum is σ = 90229034. Its totient is φ = 90229032.

The previous prime is 90229021. The next prime is 90229037. The reversal of 90229033 is 33092209.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77211369 + 13017664 = 8787^2 + 3608^2 .

It is an emirp because it is prime and its reverse (33092209) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90229033 - 2²¹ = 88131881 is a prime.

It is a super-2 number, since 2×90229033² = 16282556792230178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90228992 and 90229010.

It is not a weakly prime, because it can be changed into another prime (90229037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45114516 + 45114517.

It is an arithmetic number, because the mean of its divisors is an integer number (45114517).

Almost surely, 2^90229033 is an apocalyptic number.

It is an amenable number.

90229033 is a deficient number, since it is larger than the sum of its proper divisors (1).

90229033 is an equidigital number, since it uses as much as digits as its factorization.

90229033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 90229033 is about 9498.8964095836. The cubic root of 90229033 is about 448.5202969321.

The spelling of 90229033 in words is "ninety million, two hundred twenty-nine thousand, thirty-three".