82398143 has 4 divisors (see below), whose sum is σ = 82449240. Its totient is φ = 82347048.

The previous prime is 82398137. The next prime is 82398157. The reversal of 82398143 is 34189328.

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

It is a cyclic number.

It is not a de Polignac number, because 82398143 - 2¹² = 82394047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82398097 and 82398106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82398103) 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, 23048 + ... + 26381.

It is an arithmetic number, because the mean of its divisors is an integer number (20612310).

Almost surely, 2^82398143 is an apocalyptic number.

82398143 is a deficient number, since it is larger than the sum of its proper divisors (51097).

82398143 is a wasteful number, since it uses less digits than its factorization.

82398143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51096.

The product of its digits is 41472, while the sum is 38.

The square root of 82398143 is about 9077.3422872557. The cubic root of 82398143 is about 435.1501538272.

The spelling of 82398143 in words is "eighty-two million, three hundred ninety-eight thousand, one hundred forty-three".