82197573 has 8 divisors (see below), whose sum is σ = 109651488. Its totient is φ = 54771024.

The previous prime is 82197569. The next prime is 82197593. The reversal of 82197573 is 37579128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82197573 - 2² = 82197569 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82197503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1690 + ... + 12932.

It is an arithmetic number, because the mean of its divisors is an integer number (13706436).

Almost surely, 2^82197573 is an apocalyptic number.

It is an amenable number.

82197573 is a deficient number, since it is larger than the sum of its proper divisors (27453915).

82197573 is a wasteful number, since it uses less digits than its factorization.

82197573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13683.

The product of its digits is 105840, while the sum is 42.

The square root of 82197573 is about 9066.2877187965. The cubic root of 82197573 is about 434.7967923911.

The spelling of 82197573 in words is "eighty-two million, one hundred ninety-seven thousand, five hundred seventy-three".