83380565 has 8 divisors (see below), whose sum is σ = 100331520. Its totient is φ = 66521232.

The previous prime is 83380559. The next prime is 83380567. The reversal of 83380565 is 56508338.

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 83380565 - 2¹⁸ = 83118421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83380567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20885 + ... + 24554.

It is an arithmetic number, because the mean of its divisors is an integer number (12541440).

Almost surely, 2^83380565 is an apocalyptic number.

It is an amenable number.

83380565 is a deficient number, since it is larger than the sum of its proper divisors (16950955).

83380565 is a wasteful number, since it uses less digits than its factorization.

83380565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45811.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 83380565 is about 9131.2959102200. The cubic root of 83380565 is about 436.8727381052.

The spelling of 83380565 in words is "eighty-three million, three hundred eighty thousand, five hundred sixty-five".