84027277 has 4 divisors (see below), whose sum is σ = 88970076. Its totient is φ = 79084480.

The previous prime is 84027263. The next prime is 84027283. The reversal of 84027277 is 77272048.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35390601 + 48636676 = 5949^2 + 6974^2 .

It is a cyclic number.

It is not a de Polignac number, because 84027277 - 2¹¹ = 84025229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84027287) 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 3 ways as a sum of consecutive naturals, for example, 2471374 + ... + 2471407.

It is an arithmetic number, because the mean of its divisors is an integer number (22242519).

Almost surely, 2^84027277 is an apocalyptic number.

It is an amenable number.

84027277 is a deficient number, since it is larger than the sum of its proper divisors (4942799).

84027277 is a wasteful number, since it uses less digits than its factorization.

84027277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4942798.

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 84027277 is about 9166.6393514745. The cubic root of 84027277 is about 437.9993136774. Note that the first 3 decimals are identical.

The spelling of 84027277 in words is "eighty-four million, twenty-seven thousand, two hundred seventy-seven".