90195883 has 2 divisors, whose sum is σ = 90195884. Its totient is φ = 90195882.

The previous prime is 90195871. The next prime is 90195901. The reversal of 90195883 is 38859109.

It is a weak prime.

It is an emirp because it is prime and its reverse (38859109) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90195883 is a prime.

It is not a weakly prime, because it can be changed into another prime (90195283) 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, 45097941 + 45097942.

It is an arithmetic number, because the mean of its divisors is an integer number (45097942).

Almost surely, 2^90195883 is an apocalyptic number.

90195883 is a deficient number, since it is larger than the sum of its proper divisors (1).

90195883 is an equidigital number, since it uses as much as digits as its factorization.

90195883 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 90195883 is about 9497.1513097349. The cubic root of 90195883 is about 448.4653616613.

The spelling of 90195883 in words is "ninety million, one hundred ninety-five thousand, eight hundred eighty-three".