82873018 has 8 divisors (see below), whose sum is σ = 124679412. Its totient is φ = 41313216.

The previous prime is 82873009. The next prime is 82873019. The reversal of 82873018 is 81037828.

It can be written as a sum of positive squares in 2 ways, for example, as 80335369 + 2537649 = 8963^2 + 1593^2 .

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

It is a super-2 number, since 2×82873018² = 13735874224856648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82873019) by changing a digit.

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, 60805 + ... + 62152.

Almost surely, 2^82873018 is an apocalyptic number.

82873018 is a deficient number, since it is larger than the sum of its proper divisors (41806394).

82873018 is a wasteful number, since it uses less digits than its factorization.

82873018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123296.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 82873018 is about 9103.4618689815. The cubic root of 82873018 is about 435.9845020162.

The spelling of 82873018 in words is "eighty-two million, eight hundred seventy-three thousand, eighteen".