82042567 has 4 divisors (see below), whose sum is σ = 82404216. Its totient is φ = 81680920.

The previous prime is 82042553. The next prime is 82042577. The reversal of 82042567 is 76524028.

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 82042567 - 2²³ = 73653959 is a prime.

It is a super-4 number, since 4×82042567⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82042547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180484 + ... + 180937.

It is an arithmetic number, because the mean of its divisors is an integer number (20601054).

Almost surely, 2^82042567 is an apocalyptic number.

82042567 is a deficient number, since it is larger than the sum of its proper divisors (361649).

82042567 is a wasteful number, since it uses less digits than its factorization.

82042567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361648.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 82042567 is about 9057.7352025769. The cubic root of 82042567 is about 434.5233109967.

The spelling of 82042567 in words is "eighty-two million, forty-two thousand, five hundred sixty-seven".