840182899 has 2 divisors, whose sum is σ = 840182900. Its totient is φ = 840182898.

The previous prime is 840182821. The next prime is 840182921. The reversal of 840182899 is 998281048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 840182899 - 2⁷ = 840182771 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (840182599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420091449 + 420091450.

It is an arithmetic number, because the mean of its divisors is an integer number (420091450).

Almost surely, 2^840182899 is an apocalyptic number.

840182899 is a deficient number, since it is larger than the sum of its proper divisors (1).

840182899 is an equidigital number, since it uses as much as digits as its factorization.

840182899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 49.

The square root of 840182899 is about 28985.9086281593. The cubic root of 840182899 is about 943.6072721659.

The spelling of 840182899 in words is "eight hundred forty million, one hundred eighty-two thousand, eight hundred ninety-nine".