83746661 has 4 divisors (see below), whose sum is σ = 88154400. Its totient is φ = 79338924.

The previous prime is 83746639. The next prime is 83746667. The reversal of 83746661 is 16664738.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83746661 - 2¹⁰ = 83745637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83746667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203841 + ... + 2203878.

It is an arithmetic number, because the mean of its divisors is an integer number (22038600).

Almost surely, 2^83746661 is an apocalyptic number.

It is an amenable number.

83746661 is a deficient number, since it is larger than the sum of its proper divisors (4407739).

83746661 is a wasteful number, since it uses less digits than its factorization.

83746661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407738.

The product of its digits is 145152, while the sum is 41.

The square root of 83746661 is about 9151.3201779853. The cubic root of 83746661 is about 437.5111916593.

The spelling of 83746661 in words is "eighty-three million, seven hundred forty-six thousand, six hundred sixty-one".