84312023 has 2 divisors, whose sum is σ = 84312024. Its totient is φ = 84312022.

The previous prime is 84312017. The next prime is 84312037. The reversal of 84312023 is 32021348.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84312023 - 2²⁰ = 83263447 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84312023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84312223) 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, 42156011 + 42156012.

It is an arithmetic number, because the mean of its divisors is an integer number (42156012).

Almost surely, 2^84312023 is an apocalyptic number.

84312023 is a deficient number, since it is larger than the sum of its proper divisors (1).

84312023 is an equidigital number, since it uses as much as digits as its factorization.

84312023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 84312023 is about 9182.1578618536. The cubic root of 84312023 is about 438.4935100953.

The spelling of 84312023 in words is "eighty-four million, three hundred twelve thousand, twenty-three".