82023643 has 6 divisors (see below), whose sum is σ = 88818684. Its totient is φ = 75713976.

The previous prime is 82023631. The next prime is 82023677. The reversal of 82023643 is 34632028.

It is not a de Polignac number, because 82023643 - 2¹⁷ = 81892571 is a prime.

It is a super-3 number, since 3×82023643³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82023443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 242505 + ... + 242842.

It is an arithmetic number, because the mean of its divisors is an integer number (14803114).

Almost surely, 2^82023643 is an apocalyptic number.

82023643 is a deficient number, since it is larger than the sum of its proper divisors (6795041).

82023643 is a wasteful number, since it uses less digits than its factorization.

82023643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485373 (or 485360 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 82023643 is about 9056.6905103354. The cubic root of 82023643 is about 434.4898992701.

The spelling of 82023643 in words is "eighty-two million, twenty-three thousand, six hundred forty-three".