83027809 has 4 divisors (see below), whose sum is σ = 84435120. Its totient is φ = 81620500.

The previous prime is 83027773. The next prime is 83027821. The reversal of 83027809 is 90872038.

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 83027809 - 2¹⁵ = 82995041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83027849) 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, 703567 + ... + 703684.

It is an arithmetic number, because the mean of its divisors is an integer number (21108780).

Almost surely, 2^83027809 is an apocalyptic number.

It is an amenable number.

83027809 is a deficient number, since it is larger than the sum of its proper divisors (1407311).

83027809 is a wasteful number, since it uses less digits than its factorization.

83027809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407310.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 83027809 is about 9111.9596684797. The cubic root of 83027809 is about 436.2557785022.

The spelling of 83027809 in words is "eighty-three million, twenty-seven thousand, eight hundred nine".