82564727 has 8 divisors (see below), whose sum is σ = 94536576. Its totient is φ = 70637112.

The previous prime is 82564721. The next prime is 82564753. The reversal of 82564727 is 72746528.

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

It is not a de Polignac number, because 82564727 - 2¹² = 82560631 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 (82564721) 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, 6953 + ... + 14610.

It is an arithmetic number, because the mean of its divisors is an integer number (11817072).

Almost surely, 2^82564727 is an apocalyptic number.

82564727 is a deficient number, since it is larger than the sum of its proper divisors (11971849).

82564727 is a wasteful number, since it uses less digits than its factorization.

82564727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22117.

The product of its digits is 188160, while the sum is 41.

The square root of 82564727 is about 9086.5134677719. The cubic root of 82564727 is about 435.4432035453.

The spelling of 82564727 in words is "eighty-two million, five hundred sixty-four thousand, seven hundred twenty-seven".