99782311 has 2 divisors, whose sum is σ = 99782312. Its totient is φ = 99782310.

The previous prime is 99782239. The next prime is 99782321. The reversal of 99782311 is 11328799.

It is a strong prime.

It is an emirp because it is prime and its reverse (11328799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99782311 - 2¹³ = 99774119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99782321) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49891155 + 49891156.

It is an arithmetic number, because the mean of its divisors is an integer number (49891156).

Almost surely, 2^99782311 is an apocalyptic number.

99782311 is a deficient number, since it is larger than the sum of its proper divisors (1).

99782311 is an equidigital number, since it uses as much as digits as its factorization.

99782311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 40.

The square root of 99782311 is about 9989.1096199812. The cubic root of 99782311 is about 463.8218310570.

The spelling of 99782311 in words is "ninety-nine million, seven hundred eighty-two thousand, three hundred eleven".