82031897 has 8 divisors (see below), whose sum is σ = 83101440. Its totient is φ = 80967600.

The previous prime is 82031891. The next prime is 82031899. The reversal of 82031897 is 79813028.

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

It is a cyclic number.

It is not a de Polignac number, because 82031897 - 2⁴ = 82031881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82031897.

It is not an unprimeable number, because it can be changed into a prime (82031891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37208 + ... + 39350.

It is an arithmetic number, because the mean of its divisors is an integer number (10387680).

Almost surely, 2^82031897 is an apocalyptic number.

It is an amenable number.

82031897 is a deficient number, since it is larger than the sum of its proper divisors (1069543).

82031897 is a wasteful number, since it uses less digits than its factorization.

82031897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 82031897 is about 9057.1461840913. The cubic root of 82031897 is about 434.5044729515.

It can be divided in two parts, 82031 and 897, that added together give a palindrome (82928).

The spelling of 82031897 in words is "eighty-two million, thirty-one thousand, eight hundred ninety-seven".