990263711 has 2 divisors, whose sum is σ = 990263712. Its totient is φ = 990263710.

The previous prime is 990263647. The next prime is 990263749. The reversal of 990263711 is 117362099.

It is a happy number.

It is an a-pointer prime, because the next prime (990263749) can be obtained adding 990263711 to its sum of digits (38).

It is a strong prime.

It is an emirp because it is prime and its reverse (117362099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 990263711 - 2⁶ = 990263647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990263111) 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, 495131855 + 495131856.

It is an arithmetic number, because the mean of its divisors is an integer number (495131856).

Almost surely, 2^990263711 is an apocalyptic number.

990263711 is a deficient number, since it is larger than the sum of its proper divisors (1).

990263711 is an equidigital number, since it uses as much as digits as its factorization.

990263711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 990263711 is about 31468.4558089526. The cubic root of 990263711 is about 996.7439801746.

The spelling of 990263711 in words is "nine hundred ninety million, two hundred sixty-three thousand, seven hundred eleven".