84283861 has 2 divisors, whose sum is σ = 84283862. Its totient is φ = 84283860.

The previous prime is 84283847. The next prime is 84283879. The reversal of 84283861 is 16838248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59582961 + 24700900 = 7719^2 + 4970^2 .

It is a cyclic number.

It is not a de Polignac number, because 84283861 - 2¹³ = 84275669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84283061) 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, 42141930 + 42141931.

It is an arithmetic number, because the mean of its divisors is an integer number (42141931).

Almost surely, 2^84283861 is an apocalyptic number.

It is an amenable number.

84283861 is a deficient number, since it is larger than the sum of its proper divisors (1).

84283861 is an equidigital number, since it uses as much as digits as its factorization.

84283861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 40.

The square root of 84283861 is about 9180.6242162502. The cubic root of 84283861 is about 438.4446826210. Note that the first 3 decimals are identical.

The spelling of 84283861 in words is "eighty-four million, two hundred eighty-three thousand, eight hundred sixty-one".