82543418 has 8 divisors (see below), whose sum is σ = 123857748. Its totient is φ = 41257504.

The previous prime is 82543399. The next prime is 82543423. The reversal of 82543418 is 81434528.

It can be written as a sum of positive squares in 2 ways, for example, as 82210489 + 332929 = 9067^2 + 577^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3080 + ... + 13212.

Almost surely, 2^82543418 is an apocalyptic number.

82543418 is a deficient number, since it is larger than the sum of its proper divisors (41314330).

82543418 is a wasteful number, since it uses less digits than its factorization.

82543418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14208.

The product of its digits is 30720, while the sum is 35.

The square root of 82543418 is about 9085.3408301505. The cubic root of 82543418 is about 435.4057393726.

The spelling of 82543418 in words is "eighty-two million, five hundred forty-three thousand, four hundred eighteen".