84055877 has 2 divisors, whose sum is σ = 84055878. Its totient is φ = 84055876.

The previous prime is 84055831. The next prime is 84055889. The reversal of 84055877 is 77855048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56535361 + 27520516 = 7519^2 + 5246^2 .

It is a cyclic number.

It is not a de Polignac number, because 84055877 - 2⁶ = 84055813 is a prime.

It is a super-3 number, since 3×84055877³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84055277) 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, 42027938 + 42027939.

It is an arithmetic number, because the mean of its divisors is an integer number (42027939).

Almost surely, 2^84055877 is an apocalyptic number.

It is an amenable number.

84055877 is a deficient number, since it is larger than the sum of its proper divisors (1).

84055877 is an equidigital number, since it uses as much as digits as its factorization.

84055877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 84055877 is about 9168.1992234026. The cubic root of 84055877 is about 438.0490013497.

The spelling of 84055877 in words is "eighty-four million, fifty-five thousand, eight hundred seventy-seven".