82323643 has 4 divisors (see below), whose sum is σ = 82383480. Its totient is φ = 82263808.

The previous prime is 82323623. The next prime is 82323653. The reversal of 82323643 is 34632328.

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-82323643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82323623) 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 3 ways as a sum of consecutive naturals, for example, 27805 + ... + 30622.

It is an arithmetic number, because the mean of its divisors is an integer number (20595870).

Almost surely, 2^82323643 is an apocalyptic number.

82323643 is a deficient number, since it is larger than the sum of its proper divisors (59837).

82323643 is a wasteful number, since it uses less digits than its factorization.

82323643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59836.

The product of its digits is 20736, while the sum is 31.

The square root of 82323643 is about 9073.2377352299. The cubic root of 82323643 is about 435.0189677729.

The spelling of 82323643 in words is "eighty-two million, three hundred twenty-three thousand, six hundred forty-three".