84458243 has 2 divisors, whose sum is σ = 84458244. Its totient is φ = 84458242.

The previous prime is 84458239. The next prime is 84458251. The reversal of 84458243 is 34285448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84458243 - 2² = 84458239 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 84458197 and 84458206.

It is not a weakly prime, because it can be changed into another prime (84458233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42229121 + 42229122.

It is an arithmetic number, because the mean of its divisors is an integer number (42229122).

Almost surely, 2^84458243 is an apocalyptic number.

84458243 is a deficient number, since it is larger than the sum of its proper divisors (1).

84458243 is an equidigital number, since it uses as much as digits as its factorization.

84458243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122880, while the sum is 38.

The square root of 84458243 is about 9190.1165933844. The cubic root of 84458243 is about 438.7468527357.

The spelling of 84458243 in words is "eighty-four million, four hundred fifty-eight thousand, two hundred forty-three".