84065877 has 16 divisors (see below), whose sum is σ = 142334080. Its totient is φ = 48037536.

The previous prime is 84065857. The next prime is 84065881. The reversal of 84065877 is 77856048.

It is not a de Polignac number, because 84065877 - 2⁷ = 84065749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84065837) 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 in 15 ways as a sum of consecutive naturals, for example, 222208 + ... + 222585.

It is an arithmetic number, because the mean of its divisors is an integer number (8895880).

Almost surely, 2^84065877 is an apocalyptic number.

It is an amenable number.

84065877 is a deficient number, since it is larger than the sum of its proper divisors (58268203).

84065877 is a wasteful number, since it uses less digits than its factorization.

84065877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444809 (or 444803 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 84065877 is about 9168.7445705505. The cubic root of 84065877 is about 438.0663720023.

The spelling of 84065877 in words is "eighty-four million, sixty-five thousand, eight hundred seventy-seven".