82028767 has 4 divisors (see below), whose sum is σ = 82047160. Its totient is φ = 82010376.

The previous prime is 82028761. The next prime is 82028777. The reversal of 82028767 is 76782028.

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 82028767 - 2¹¹ = 82026719 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 (82028761) 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, 2209 + ... + 12997.

It is an arithmetic number, because the mean of its divisors is an integer number (20511790).

Almost surely, 2^82028767 is an apocalyptic number.

82028767 is a deficient number, since it is larger than the sum of its proper divisors (18393).

82028767 is a wasteful number, since it uses less digits than its factorization.

82028767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18392.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 82028767 is about 9056.9733907084. The cubic root of 82028767 is about 434.4989465797.

The spelling of 82028767 in words is "eighty-two million, twenty-eight thousand, seven hundred sixty-seven".