82391043 has 16 divisors (see below), whose sum is σ = 125701376. Its totient is φ = 47023200.

The previous prime is 82391041. The next prime is 82391063. The reversal of 82391043 is 34019328.

It is not a de Polignac number, because 82391043 - 2¹ = 82391041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82391043.

It is not an unprimeable number, because it can be changed into a prime (82391041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20205 + ... + 23937.

It is an arithmetic number, because the mean of its divisors is an integer number (7856336).

Almost surely, 2^82391043 is an apocalyptic number.

82391043 is a deficient number, since it is larger than the sum of its proper divisors (43310333).

82391043 is a wasteful number, since it uses less digits than its factorization.

82391043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4794.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 82391043 is about 9076.9511951976. The cubic root of 82391043 is about 435.1376549418.

The spelling of 82391043 in words is "eighty-two million, three hundred ninety-one thousand, forty-three".