90413833 has 2 divisors, whose sum is σ = 90413834. Its totient is φ = 90413832.

The previous prime is 90413777. The next prime is 90413863. The reversal of 90413833 is 33831409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85155984 + 5257849 = 9228^2 + 2293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90413833 is a prime.

It is a super-2 number, since 2×90413833² = 16349322395503778, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90413795 and 90413804.

It is not a weakly prime, because it can be changed into another prime (90413863) 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 as a sum of consecutive naturals, namely, 45206916 + 45206917.

It is an arithmetic number, because the mean of its divisors is an integer number (45206917).

Almost surely, 2^90413833 is an apocalyptic number.

It is an amenable number.

90413833 is a deficient number, since it is larger than the sum of its proper divisors (1).

90413833 is an equidigital number, since it uses as much as digits as its factorization.

90413833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 90413833 is about 9508.6188797322. The cubic root of 90413833 is about 448.8262961033.

The spelling of 90413833 in words is "ninety million, four hundred thirteen thousand, eight hundred thirty-three".