84668929 has 2 divisors, whose sum is σ = 84668930. Its totient is φ = 84668928.

The previous prime is 84668923. The next prime is 84668971. The reversal of 84668929 is 92986648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84364225 + 304704 = 9185^2 + 552^2 .

It is a cyclic number.

It is not a de Polignac number, because 84668929 - 2⁵ = 84668897 is a prime.

It is not a weakly prime, because it can be changed into another prime (84668923) 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, 42334464 + 42334465.

It is an arithmetic number, because the mean of its divisors is an integer number (42334465).

Almost surely, 2^84668929 is an apocalyptic number.

It is an amenable number.

84668929 is a deficient number, since it is larger than the sum of its proper divisors (1).

84668929 is an equidigital number, since it uses as much as digits as its factorization.

84668929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 52.

The square root of 84668929 is about 9201.5720939413. The cubic root of 84668929 is about 439.1113763102. Note that the first 3 decimals are identical.

The spelling of 84668929 in words is "eighty-four million, six hundred sixty-eight thousand, nine hundred twenty-nine".