83766118 has 4 divisors (see below), whose sum is σ = 125649180. Its totient is φ = 41883058.

The previous prime is 83766101. The next prime is 83766119. The reversal of 83766118 is 81166738.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83766119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20941528 + ... + 20941531.

It is an arithmetic number, because the mean of its divisors is an integer number (31412295).

Almost surely, 2^83766118 is an apocalyptic number.

83766118 is a deficient number, since it is larger than the sum of its proper divisors (41883062).

83766118 is a wasteful number, since it uses less digits than its factorization.

83766118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41883061.

The product of its digits is 48384, while the sum is 40.

The square root of 83766118 is about 9152.3831869082. The cubic root of 83766118 is about 437.5450716014.

The spelling of 83766118 in words is "eighty-three million, seven hundred sixty-six thousand, one hundred eighteen".