90768311 has 2 divisors, whose sum is σ = 90768312. Its totient is φ = 90768310.

The previous prime is 90768299. The next prime is 90768329. The reversal of 90768311 is 11386709.

It is a weak prime.

It is an emirp because it is prime and its reverse (11386709) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90768311 - 2¹⁸ = 90506167 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90768361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45384155 + 45384156.

It is an arithmetic number, because the mean of its divisors is an integer number (45384156).

Almost surely, 2^90768311 is an apocalyptic number.

90768311 is a deficient number, since it is larger than the sum of its proper divisors (1).

90768311 is an equidigital number, since it uses as much as digits as its factorization.

90768311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 90768311 is about 9527.2404714062. The cubic root of 90768311 is about 449.4120898625.

The spelling of 90768311 in words is "ninety million, seven hundred sixty-eight thousand, three hundred eleven".