82741871 has 4 divisors (see below), whose sum is σ = 82767432. Its totient is φ = 82716312.

The previous prime is 82741859. The next prime is 82741913. The reversal of 82741871 is 17814728.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82741871 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 (82741811) 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, 7076 + ... + 14681.

It is an arithmetic number, because the mean of its divisors is an integer number (20691858).

Almost surely, 2^82741871 is an apocalyptic number.

82741871 is a deficient number, since it is larger than the sum of its proper divisors (25561).

82741871 is a wasteful number, since it uses less digits than its factorization.

82741871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25560.

The product of its digits is 25088, while the sum is 38.

The square root of 82741871 is about 9096.2558781072. The cubic root of 82741871 is about 435.7543979810.

The spelling of 82741871 in words is "eighty-two million, seven hundred forty-one thousand, eight hundred seventy-one".