90836441 has 2 divisors, whose sum is σ = 90836442. Its totient is φ = 90836440.

The previous prime is 90836413. The next prime is 90836467. The reversal of 90836441 is 14463809.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59521225 + 31315216 = 7715^2 + 5596^2 .

It is an emirp because it is prime and its reverse (14463809) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90836441 - 2⁶ = 90836377 is a prime.

It is not a weakly prime, because it can be changed into another prime (90836401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45418220 + 45418221.

It is an arithmetic number, because the mean of its divisors is an integer number (45418221).

Almost surely, 2^90836441 is an apocalyptic number.

It is an amenable number.

90836441 is a deficient number, since it is larger than the sum of its proper divisors (1).

90836441 is an equidigital number, since it uses as much as digits as its factorization.

90836441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 90836441 is about 9530.8153376298. The cubic root of 90836441 is about 449.5245035007.

The spelling of 90836441 in words is "ninety million, eight hundred thirty-six thousand, four hundred forty-one".