82578343 has 4 divisors (see below), whose sum is σ = 82597168. Its totient is φ = 82559520.

The previous prime is 82578337. The next prime is 82578359. The reversal of 82578343 is 34387528.

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 82578343 - 2⁵ = 82578311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82578296 and 82578305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82573343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030 + ... + 12892.

It is an arithmetic number, because the mean of its divisors is an integer number (20649292).

Almost surely, 2^82578343 is an apocalyptic number.

82578343 is a deficient number, since it is larger than the sum of its proper divisors (18825).

82578343 is a wasteful number, since it uses less digits than its factorization.

82578343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18824.

The product of its digits is 161280, while the sum is 40.

The square root of 82578343 is about 9087.2626791570. The cubic root of 82578343 is about 435.4671389836.

The spelling of 82578343 in words is "eighty-two million, five hundred seventy-eight thousand, three hundred forty-three".