90108853 has 2 divisors, whose sum is σ = 90108854. Its totient is φ = 90108852.

The previous prime is 90108841. The next prime is 90108881. The reversal of 90108853 is 35880109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54789604 + 35319249 = 7402^2 + 5943^2 .

It is an emirp because it is prime and its reverse (35880109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90108853 - 2¹⁷ = 89977781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90108803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45054426 + 45054427.

It is an arithmetic number, because the mean of its divisors is an integer number (45054427).

Almost surely, 2^90108853 is an apocalyptic number.

It is an amenable number.

90108853 is a deficient number, since it is larger than the sum of its proper divisors (1).

90108853 is an equidigital number, since it uses as much as digits as its factorization.

90108853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 90108853 is about 9492.5683036784. The cubic root of 90108853 is about 448.3210738468.

The spelling of 90108853 in words is "ninety million, one hundred eight thousand, eight hundred fifty-three".