83448661 has 4 divisors (see below), whose sum is σ = 83546892. Its totient is φ = 83350432.

The previous prime is 83448647. The next prime is 83448691. The reversal of 83448661 is 16684438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16684438 = 2 ⋅8342219.

It can be written as a sum of positive squares in 2 ways, for example, as 38812900 + 44635761 = 6230^2 + 6681^2 .

It is a cyclic number.

It is not a de Polignac number, because 83448661 - 2⁹ = 83448149 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 (83448611) 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, 47830 + ... + 49543.

It is an arithmetic number, because the mean of its divisors is an integer number (20886723).

Almost surely, 2^83448661 is an apocalyptic number.

It is an amenable number.

83448661 is a deficient number, since it is larger than the sum of its proper divisors (98231).

83448661 is an equidigital number, since it uses as much as digits as its factorization.

83448661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98230.

The product of its digits is 110592, while the sum is 40.

The square root of 83448661 is about 9135.0238642272. The cubic root of 83448661 is about 436.9916354806.

The spelling of 83448661 in words is "eighty-three million, four hundred forty-eight thousand, six hundred sixty-one".