82018822 has 4 divisors (see below), whose sum is σ = 123028236. Its totient is φ = 41009410.

The previous prime is 82018813. The next prime is 82018823. The reversal of 82018822 is 22881028.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82018823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20504704 + ... + 20504707.

It is an arithmetic number, because the mean of its divisors is an integer number (30757059).

Almost surely, 2^82018822 is an apocalyptic number.

82018822 is a deficient number, since it is larger than the sum of its proper divisors (41009414).

82018822 is a wasteful number, since it uses less digits than its factorization.

82018822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41009413.

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 82018822 is about 9056.4243495985. The cubic root of 82018822 is about 434.4813866154.

The spelling of 82018822 in words is "eighty-two million, eighteen thousand, eight hundred twenty-two".