84286877 has 2 divisors, whose sum is σ = 84286878. Its totient is φ = 84286876.

The previous prime is 84286843. The next prime is 84286879. The reversal of 84286877 is 77868248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68873401 + 15413476 = 8299^2 + 3926^2 .

It is a cyclic number.

It is not a de Polignac number, because 84286877 - 2²⁰ = 83238301 is a prime.

Together with 84286879, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84286879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42143438 + 42143439.

It is an arithmetic number, because the mean of its divisors is an integer number (42143439).

Almost surely, 2^84286877 is an apocalyptic number.

It is an amenable number.

84286877 is a deficient number, since it is larger than the sum of its proper divisors (1).

84286877 is an equidigital number, since it uses as much as digits as its factorization.

84286877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1204224, while the sum is 50.

The square root of 84286877 is about 9180.7884737641. The cubic root of 84286877 is about 438.4499123031.

The spelling of 84286877 in words is "eighty-four million, two hundred eighty-six thousand, eight hundred seventy-seven".