83582321 has 4 divisors (see below), whose sum is σ = 86464500. Its totient is φ = 80700144.

The previous prime is 83582287. The next prime is 83582327. The reversal of 83582321 is 12328538.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26368225 + 57214096 = 5135^2 + 7564^2 .

It is a cyclic number.

It is not a de Polignac number, because 83582321 - 2¹⁸ = 83320177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83582327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1441046 + ... + 1441103.

It is an arithmetic number, because the mean of its divisors is an integer number (21616125).

Almost surely, 2^83582321 is an apocalyptic number.

It is an amenable number.

83582321 is a deficient number, since it is larger than the sum of its proper divisors (2882179).

83582321 is a wasteful number, since it uses less digits than its factorization.

83582321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882178.

The product of its digits is 11520, while the sum is 32.

The square root of 83582321 is about 9142.3367363054. The cubic root of 83582321 is about 437.2248213490.

The spelling of 83582321 in words is "eighty-three million, five hundred eighty-two thousand, three hundred twenty-one".