90617827 has 2 divisors, whose sum is σ = 90617828. Its totient is φ = 90617826.

The previous prime is 90617789. The next prime is 90617843. The reversal of 90617827 is 72871609.

It is a strong prime.

It is an emirp because it is prime and its reverse (72871609) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90617827 - 2²³ = 82229219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90617827.

It is not a weakly prime, because it can be changed into another prime (90617887) 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, 45308913 + 45308914.

It is an arithmetic number, because the mean of its divisors is an integer number (45308914).

Almost surely, 2^90617827 is an apocalyptic number.

90617827 is a deficient number, since it is larger than the sum of its proper divisors (1).

90617827 is an equidigital number, since it uses as much as digits as its factorization.

90617827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 90617827 is about 9519.3396304576. The cubic root of 90617827 is about 449.1635936760.

The spelling of 90617827 in words is "ninety million, six hundred seventeen thousand, eight hundred twenty-seven".