82797197 has 4 divisors (see below), whose sum is σ = 94625376. Its totient is φ = 70969020.

The previous prime is 82797179. The next prime is 82797199. The reversal of 82797197 is 79179728.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82797197 - 2⁶ = 82797133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82797199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5914079 + ... + 5914092.

It is an arithmetic number, because the mean of its divisors is an integer number (23656344).

Almost surely, 2^82797197 is an apocalyptic number.

It is an amenable number.

82797197 is a deficient number, since it is larger than the sum of its proper divisors (11828179).

82797197 is a wasteful number, since it uses less digits than its factorization.

82797197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11828178.

The product of its digits is 444528, while the sum is 50.

The square root of 82797197 is about 9099.2965112694. The cubic root of 82797197 is about 435.8514998718.

The spelling of 82797197 in words is "eighty-two million, seven hundred ninety-seven thousand, one hundred ninety-seven".