82284431 has 4 divisors (see below), whose sum is σ = 82446600. Its totient is φ = 82122264.

The previous prime is 82284401. The next prime is 82284479. The reversal of 82284431 is 13448228.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82284431 is a prime.

It is a super-2 number, since 2×82284431² = 13541455169987522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82284401) 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, 80321 + ... + 81338.

It is an arithmetic number, because the mean of its divisors is an integer number (20611650).

Almost surely, 2^82284431 is an apocalyptic number.

82284431 is a deficient number, since it is larger than the sum of its proper divisors (162169).

82284431 is a wasteful number, since it uses less digits than its factorization.

82284431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162168.

The product of its digits is 12288, while the sum is 32.

The square root of 82284431 is about 9071.0766174694. The cubic root of 82284431 is about 434.9498880927.

The spelling of 82284431 in words is "eighty-two million, two hundred eighty-four thousand, four hundred thirty-one".