90885853 has 2 divisors, whose sum is σ = 90885854. Its totient is φ = 90885852.

The previous prime is 90885841. The next prime is 90885863. The reversal of 90885853 is 35858809.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89151364 + 1734489 = 9442^2 + 1317^2 .

It is a cyclic number.

It is not a de Polignac number, because 90885853 - 2²¹ = 88788701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90885833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45442926 + 45442927.

It is an arithmetic number, because the mean of its divisors is an integer number (45442927).

Almost surely, 2^90885853 is an apocalyptic number.

It is an amenable number.

90885853 is a deficient number, since it is larger than the sum of its proper divisors (1).

90885853 is an equidigital number, since it uses as much as digits as its factorization.

90885853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 90885853 is about 9533.4072083385. The cubic root of 90885853 is about 449.6059975143.

It can be divided in two parts, 9088 and 5853, that added together give a palindrome (14941).

The spelling of 90885853 in words is "ninety million, eight hundred eighty-five thousand, eight hundred fifty-three".