83538668 has 24 divisors (see below), whose sum is σ = 160581120. Its totient is φ = 37849680.

The previous prime is 83538661. The next prime is 83538673. The reversal of 83538668 is 86683538.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (83538661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22148 + ... + 25643.

It is an arithmetic number, because the mean of its divisors is an integer number (6690880).

Almost surely, 2^83538668 is an apocalyptic number.

It is an amenable number.

83538668 is a deficient number, since it is larger than the sum of its proper divisors (77042452).

83538668 is a wasteful number, since it uses less digits than its factorization.

83538668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47837 (or 47835 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 83538668 is about 9139.9490151751. The cubic root of 83538668 is about 437.1486908204.

The spelling of 83538668 in words is "eighty-three million, five hundred thirty-eight thousand, six hundred sixty-eight".