82722818 has 8 divisors (see below), whose sum is σ = 128087040. Its totient is φ = 40027140.

The previous prime is 82722803. The next prime is 82722839. The reversal of 82722818 is 81822728.

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

It is a super-2 number, since 2×82722818² = 13686129235722248, which contains 22 as substring.

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, 667058 + ... + 667181.

It is an arithmetic number, because the mean of its divisors is an integer number (16010880).

Almost surely, 2^82722818 is an apocalyptic number.

82722818 is a deficient number, since it is larger than the sum of its proper divisors (45364222).

82722818 is a wasteful number, since it uses less digits than its factorization.

82722818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334272.

The product of its digits is 28672, while the sum is 38.

The square root of 82722818 is about 9095.2085187751. The cubic root of 82722818 is about 435.7209483068.

The spelling of 82722818 in words is "eighty-two million, seven hundred twenty-two thousand, eight hundred eighteen".