83386666 has 24 divisors (see below), whose sum is σ = 145579140. Its totient is φ = 35671680.

The previous prime is 83386663. The next prime is 83386673. The reversal of 83386666 is 66668338.

It can be written as a sum of positive squares in 2 ways, for example, as 76475025 + 6911641 = 8745^2 + 2629^2 .

It is not an unprimeable number, because it can be changed into a prime (83386663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6021 + ... + 14248.

Almost surely, 2^83386666 is an apocalyptic number.

83386666 is a deficient number, since it is larger than the sum of its proper divisors (62192474).

83386666 is a wasteful number, since it uses less digits than its factorization.

83386666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20310 (or 20299 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 83386666 is about 9131.6299749826. The cubic root of 83386666 is about 436.8833932484.

The spelling of 83386666 in words is "eighty-three million, three hundred eighty-six thousand, six hundred sixty-six".