83684266 has 4 divisors (see below), whose sum is σ = 125526402. Its totient is φ = 41842132.

The previous prime is 83684219. The next prime is 83684291. The reversal of 83684266 is 66248638.

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

It can be written as a sum of positive squares in only one way, i.e., 82537225 + 1147041 = 9085^2 + 1071^2 .

It is an unprimeable number.

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, 20921065 + ... + 20921068.

Almost surely, 2^83684266 is an apocalyptic number.

83684266 is a deficient number, since it is larger than the sum of its proper divisors (41842136).

83684266 is a wasteful number, since it uses less digits than its factorization.

83684266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41842135.

The product of its digits is 331776, while the sum is 43.

The square root of 83684266 is about 9147.9104717963. The cubic root of 83684266 is about 437.4025095426.

The spelling of 83684266 in words is "eighty-three million, six hundred eighty-four thousand, two hundred sixty-six".