90895229 has 2 divisors, whose sum is σ = 90895230. Its totient is φ = 90895228.

The previous prime is 90895201. The next prime is 90895247. The reversal of 90895229 is 92259809.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75864100 + 15031129 = 8710^2 + 3877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90895229 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90895229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90895289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45447614 + 45447615.

It is an arithmetic number, because the mean of its divisors is an integer number (45447615).

Almost surely, 2^90895229 is an apocalyptic number.

It is an amenable number.

90895229 is a deficient number, since it is larger than the sum of its proper divisors (1).

90895229 is an equidigital number, since it uses as much as digits as its factorization.

90895229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 90895229 is about 9533.8989400979. The cubic root of 90895229 is about 449.6214577894.

The spelling of 90895229 in words is "ninety million, eight hundred ninety-five thousand, two hundred twenty-nine".