82197204 has 12 divisors (see below), whose sum is σ = 191793504. Its totient is φ = 27399064.

The previous prime is 82197179. The next prime is 82197253. The reversal of 82197204 is 40279128.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 3424872 + ... + 3424895.

It is an arithmetic number, because the mean of its divisors is an integer number (15982792).

Almost surely, 2^82197204 is an apocalyptic number.

It is an amenable number.

82197204 is an abundant number, since it is smaller than the sum of its proper divisors (109596300).

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

82197204 is a wasteful number, since it uses less digits than its factorization.

82197204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6849774 (or 6849772 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 82197204 is about 9066.2673686584. The cubic root of 82197204 is about 434.7961417625.

The spelling of 82197204 in words is "eighty-two million, one hundred ninety-seven thousand, two hundred four".