82219688 has 32 divisors (see below), whose sum is σ = 167520000. Its totient is φ = 37687680.

The previous prime is 82219663. The next prime is 82219691. The reversal of 82219688 is 88691228.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4013 + ... + 13436.

It is an arithmetic number, because the mean of its divisors is an integer number (5235000).

Almost surely, 2^82219688 is an apocalyptic number.

It is an amenable number.

82219688 is an abundant number, since it is smaller than the sum of its proper divisors (85300312).

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

82219688 is a wasteful number, since it uses less digits than its factorization.

82219688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17505 (or 17501 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 82219688 is about 9067.5072649544. The cubic root of 82219688 is about 434.8357824670.

The spelling of 82219688 in words is "eighty-two million, two hundred nineteen thousand, six hundred eighty-eight".