83040661 has 8 divisors (see below), whose sum is σ = 93512448. Its totient is φ = 73056000.

The previous prime is 83040653. The next prime is 83040673. The reversal of 83040661 is 16604038.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83040661 - 2³ = 83040653 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 (83040361) 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, 121420 + ... + 122101.

It is an arithmetic number, because the mean of its divisors is an integer number (11689056).

Almost surely, 2^83040661 is an apocalyptic number.

It is an amenable number.

83040661 is a deficient number, since it is larger than the sum of its proper divisors (10471787).

83040661 is a wasteful number, since it uses less digits than its factorization.

83040661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243563.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 83040661 is about 9112.6648681931. The cubic root of 83040661 is about 436.2782869045.

Adding to 83040661 its reverse (16604038), we get a palindrome (99644699).

The spelling of 83040661 in words is "eighty-three million, forty thousand, six hundred sixty-one".