82220658 has 32 divisors (see below), whose sum is σ = 179745216. Its totient is φ = 24919488.

The previous prime is 82220647. The next prime is 82220659. The reversal of 82220658 is 85602228.

It is not an unprimeable number, because it can be changed into a prime (82220659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2641 + ... + 13092.

It is an arithmetic number, because the mean of its divisors is an integer number (5617038).

Almost surely, 2^82220658 is an apocalyptic number.

82220658 is an abundant number, since it is smaller than the sum of its proper divisors (97524558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82220658 is a wasteful number, since it uses less digits than its factorization.

82220658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15818.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 82220658 is about 9067.5607524847. The cubic root of 82220658 is about 434.8374924753.

The spelling of 82220658 in words is "eighty-two million, two hundred twenty thousand, six hundred fifty-eight".