82212884 has 24 divisors (see below), whose sum is σ = 164055528. Its totient is φ = 35712000.

The previous prime is 82212881. The next prime is 82212919. The reversal of 82212884 is 48821228.

It can be written as a sum of positive squares in 4 ways, for example, as 21715600 + 60497284 = 4660^2 + 7778^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82212881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45617 + ... + 47384.

It is an arithmetic number, because the mean of its divisors is an integer number (6835647).

Almost surely, 2^82212884 is an apocalyptic number.

It is an amenable number.

82212884 is a deficient number, since it is larger than the sum of its proper divisors (81842644).

82212884 is a wasteful number, since it uses less digits than its factorization.

82212884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93035 (or 93033 counting only the distinct ones).

The product of its digits is 16384, while the sum is 35.

The square root of 82212884 is about 9067.1320713884. The cubic root of 82212884 is about 434.8237873502.

The spelling of 82212884 in words is "eighty-two million, two hundred twelve thousand, eight hundred eighty-four".