90084433 has 2 divisors, whose sum is σ = 90084434. Its totient is φ = 90084432.

The previous prime is 90084427. The next prime is 90084443. The reversal of 90084433 is 33448009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76335169 + 13749264 = 8737^2 + 3708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90084433 is a prime.

It is equal to p_5221597 and since 90084433 and 5221597 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 90084395 and 90084404.

It is not a weakly prime, because it can be changed into another prime (90084403) 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, 45042216 + 45042217.

It is an arithmetic number, because the mean of its divisors is an integer number (45042217).

Almost surely, 2^90084433 is an apocalyptic number.

It is an amenable number.

90084433 is a deficient number, since it is larger than the sum of its proper divisors (1).

90084433 is an equidigital number, since it uses as much as digits as its factorization.

90084433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 90084433 is about 9491.2819471344. The cubic root of 90084433 is about 448.2805710202.

The spelling of 90084433 in words is "ninety million, eighty-four thousand, four hundred thirty-three".