82187854 has 8 divisors (see below), whose sum is σ = 140893488. Its totient is φ = 35223360.

The previous prime is 82187849. The next prime is 82187869. The reversal of 82187854 is 45878128.

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

It is a self number, because there is not a number n which added to its sum of digits gives 82187854.

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, 2935267 + ... + 2935294.

It is an arithmetic number, because the mean of its divisors is an integer number (17611686).

Almost surely, 2^82187854 is an apocalyptic number.

82187854 is a deficient number, since it is larger than the sum of its proper divisors (58705634).

82187854 is a wasteful number, since it uses less digits than its factorization.

82187854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870570.

The product of its digits is 143360, while the sum is 43.

The square root of 82187854 is about 9065.7517062845. The cubic root of 82187854 is about 434.7796549970.

The spelling of 82187854 in words is "eighty-two million, one hundred eighty-seven thousand, eight hundred fifty-four".