83660611 has 4 divisors (see below), whose sum is σ = 85440672. Its totient is φ = 81880552.

The previous prime is 83660609. The next prime is 83660627. The reversal of 83660611 is 11606638.

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

It is a cyclic number.

It is not a de Polignac number, because 83660611 - 2¹ = 83660609 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83660711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889960 + ... + 890053.

It is an arithmetic number, because the mean of its divisors is an integer number (21360168).

Almost surely, 2^83660611 is an apocalyptic number.

83660611 is a deficient number, since it is larger than the sum of its proper divisors (1780061).

83660611 is a wasteful number, since it uses less digits than its factorization.

83660611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780060.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 83660611 is about 9146.6174622097. The cubic root of 83660611 is about 437.3612921911.

The spelling of 83660611 in words is "eighty-three million, six hundred sixty thousand, six hundred eleven".