84967823 has 2 divisors, whose sum is σ = 84967824. Its totient is φ = 84967822.

The previous prime is 84967793. The next prime is 84967849. The reversal of 84967823 is 32876948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84967823 - 2⁸ = 84967567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84961823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42483911 + 42483912.

It is an arithmetic number, because the mean of its divisors is an integer number (42483912).

Almost surely, 2^84967823 is an apocalyptic number.

84967823 is a deficient number, since it is larger than the sum of its proper divisors (1).

84967823 is an equidigital number, since it uses as much as digits as its factorization.

84967823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 47.

The square root of 84967823 is about 9217.7992492785. The cubic root of 84967823 is about 439.6274791200.

The spelling of 84967823 in words is "eighty-four million, nine hundred sixty-seven thousand, eight hundred twenty-three".