82543694 has 8 divisors (see below), whose sum is σ = 123904128. Its totient is φ = 41242320.

The previous prime is 82543649. The next prime is 82543709. The reversal of 82543694 is 49634528.

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

It is a super-2 number, since 2×82543694² = 13626922838331272, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 11087 + ... + 16970.

It is an arithmetic number, because the mean of its divisors is an integer number (15488016).

Almost surely, 2^82543694 is an apocalyptic number.

82543694 is a deficient number, since it is larger than the sum of its proper divisors (41360434).

82543694 is a wasteful number, since it uses less digits than its factorization.

82543694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29530.

The product of its digits is 207360, while the sum is 41.

The square root of 82543694 is about 9085.3560194414. The cubic root of 82543694 is about 435.4062246600.

The spelling of 82543694 in words is "eighty-two million, five hundred forty-three thousand, six hundred ninety-four".