83685284 has 6 divisors (see below), whose sum is σ = 146449254. Its totient is φ = 41842640.

The previous prime is 83685281. The next prime is 83685307. The reversal of 83685284 is 48258638.

It can be written as a sum of positive squares in only one way, i.e., 78712384 + 4972900 = 8872^2 + 2230^2 .

It is not an unprimeable number, because it can be changed into a prime (83685281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10460657 + ... + 10460664.

It is an arithmetic number, because the mean of its divisors is an integer number (24408209).

Almost surely, 2^83685284 is an apocalyptic number.

It is an amenable number.

83685284 is a deficient number, since it is larger than the sum of its proper divisors (62763970).

83685284 is a wasteful number, since it uses less digits than its factorization.

83685284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20921325 (or 20921323 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 83685284 is about 9147.9661127488. The cubic root of 83685284 is about 437.4042831693.

The spelling of 83685284 in words is "eighty-three million, six hundred eighty-five thousand, two hundred eighty-four".