82017331 has 4 divisors (see below), whose sum is σ = 89473464. Its totient is φ = 74561200.

The previous prime is 82017329. The next prime is 82017347. The reversal of 82017331 is 13371028.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82017331 - 2¹ = 82017329 is a prime.

It is a super-2 number, since 2×82017331² = 13453685168727122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82017296 and 82017305.

It is not an unprimeable number, because it can be changed into a prime (82017301) 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, 3728050 + ... + 3728071.

It is an arithmetic number, because the mean of its divisors is an integer number (22368366).

Almost surely, 2^82017331 is an apocalyptic number.

82017331 is a deficient number, since it is larger than the sum of its proper divisors (7456133).

82017331 is a wasteful number, since it uses less digits than its factorization.

82017331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7456132.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 82017331 is about 9056.3420319685. The cubic root of 82017331 is about 434.4787538227.

Adding to 82017331 its reverse (13371028), we get a palindrome (95388359).

The spelling of 82017331 in words is "eighty-two million, seventeen thousand, three hundred thirty-one".