84140263 has 2 divisors, whose sum is σ = 84140264. Its totient is φ = 84140262.

The previous prime is 84140249. The next prime is 84140267. The reversal of 84140263 is 36204148.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84140263 - 2⁹ = 84139751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84140267) 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, 42070131 + 42070132.

It is an arithmetic number, because the mean of its divisors is an integer number (42070132).

Almost surely, 2^84140263 is an apocalyptic number.

84140263 is a deficient number, since it is larger than the sum of its proper divisors (1).

84140263 is an equidigital number, since it uses as much as digits as its factorization.

84140263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 84140263 is about 9172.8001722484. The cubic root of 84140263 is about 438.1955421236.

The spelling of 84140263 in words is "eighty-four million, one hundred forty thousand, two hundred sixty-three".