82572717 has 8 divisors (see below), whose sum is σ = 110373120. Its totient is φ = 54910400.

The previous prime is 82572697. The next prime is 82572719. The reversal of 82572717 is 71727528.

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 82572717 - 2¹⁴ = 82556333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82572719) 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, 33117 + ... + 35522.

It is an arithmetic number, because the mean of its divisors is an integer number (13796640).

Almost surely, 2^82572717 is an apocalyptic number.

It is an amenable number.

82572717 is a deficient number, since it is larger than the sum of its proper divisors (27800403).

82572717 is a wasteful number, since it uses less digits than its factorization.

82572717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69043.

The product of its digits is 54880, while the sum is 39.

The square root of 82572717 is about 9086.9531197206. The cubic root of 82572717 is about 435.4572494101.

The spelling of 82572717 in words is "eighty-two million, five hundred seventy-two thousand, seven hundred seventeen".