84818893 has 2 divisors, whose sum is σ = 84818894. Its totient is φ = 84818892.

The previous prime is 84818887. The next prime is 84818927. The reversal of 84818893 is 39881848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72131049 + 12687844 = 8493^2 + 3562^2 .

It is a cyclic number.

It is not a de Polignac number, because 84818893 - 2⁵ = 84818861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84818803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42409446 + 42409447.

It is an arithmetic number, because the mean of its divisors is an integer number (42409447).

Almost surely, 2^84818893 is an apocalyptic number.

It is an amenable number.

84818893 is a deficient number, since it is larger than the sum of its proper divisors (1).

84818893 is an equidigital number, since it uses as much as digits as its factorization.

84818893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 49.

The square root of 84818893 is about 9209.7173137942. The cubic root of 84818893 is about 439.3704719804.

The spelling of 84818893 in words is "eighty-four million, eight hundred eighteen thousand, eight hundred ninety-three".