82538567 has 4 divisors (see below), whose sum is σ = 82580640. Its totient is φ = 82496496.

The previous prime is 82538557. The next prime is 82538579. The reversal of 82538567 is 76583528.

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 82538567 - 2⁶ = 82538503 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 (82538507) 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, 17942 + ... + 22067.

It is an arithmetic number, because the mean of its divisors is an integer number (20645160).

Almost surely, 2^82538567 is an apocalyptic number.

82538567 is a deficient number, since it is larger than the sum of its proper divisors (42073).

82538567 is a wasteful number, since it uses less digits than its factorization.

82538567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42072.

The product of its digits is 403200, while the sum is 44.

The square root of 82538567 is about 9085.0738577075. The cubic root of 82538567 is about 435.3972097418.

The spelling of 82538567 in words is "eighty-two million, five hundred thirty-eight thousand, five hundred sixty-seven".