83506670 has 16 divisors (see below), whose sum is σ = 161874720. Its totient is φ = 30833184.

The previous prime is 83506663. The next prime is 83506673. The reversal of 83506670 is 7660538.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 83506670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83506673) 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 in 7 ways as a sum of consecutive naturals, for example, 321050 + ... + 321309.

It is an arithmetic number, because the mean of its divisors is an integer number (10117170).

Almost surely, 2^83506670 is an apocalyptic number.

83506670 is a deficient number, since it is larger than the sum of its proper divisors (78368050).

83506670 is a wasteful number, since it uses less digits than its factorization.

83506670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642379.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 83506670 is about 9138.1984001224. The cubic root of 83506670 is about 437.0928696841.

The spelling of 83506670 in words is "eighty-three million, five hundred six thousand, six hundred seventy".