82013197 has 16 divisors (see below), whose sum is σ = 97484800. Its totient is φ = 67515120.

The previous prime is 82013179. The next prime is 82013221. The reversal of 82013197 is 79131028.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82013197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82013137) 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 15 ways as a sum of consecutive naturals, for example, 28804 + ... + 31522.

It is an arithmetic number, because the mean of its divisors is an integer number (6092800).

Almost surely, 2^82013197 is an apocalyptic number.

It is an amenable number.

82013197 is a deficient number, since it is larger than the sum of its proper divisors (15471603).

82013197 is a wasteful number, since it uses less digits than its factorization.

82013197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 82013197 is about 9056.1137912462. The cubic root of 82013197 is about 434.4714538804.

The spelling of 82013197 in words is "eighty-two million, thirteen thousand, one hundred ninety-seven".