84312877 has 32 divisors (see below), whose sum is σ = 101896704. Its totient is φ = 68889600.

The previous prime is 84312869. The next prime is 84312929. The reversal of 84312877 is 77821348.

It is a cyclic number.

It is not a de Polignac number, because 84312877 - 2³ = 84312869 is a prime.

It is a super-2 number, since 2×84312877² = 14217322456034258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84312817) 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 in 31 ways as a sum of consecutive naturals, for example, 465727 + ... + 465907.

It is an arithmetic number, because the mean of its divisors is an integer number (3184272).

Almost surely, 2^84312877 is an apocalyptic number.

It is an amenable number.

84312877 is a deficient number, since it is larger than the sum of its proper divisors (17583827).

84312877 is a wasteful number, since it uses less digits than its factorization.

84312877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309.

The product of its digits is 75264, while the sum is 40.

The square root of 84312877 is about 9182.2043649660. The cubic root of 84312877 is about 438.4949905967.

The spelling of 84312877 in words is "eighty-four million, three hundred twelve thousand, eight hundred seventy-seven".