82871903 has 4 divisors (see below), whose sum is σ = 83098080. Its totient is φ = 82645728.

The previous prime is 82871881. The next prime is 82871909. The reversal of 82871903 is 30917828.

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 82871903 - 2²⁰ = 81823327 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 (82871909) 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, 112538 + ... + 113271.

It is an arithmetic number, because the mean of its divisors is an integer number (20774520).

Almost surely, 2^82871903 is an apocalyptic number.

82871903 is a deficient number, since it is larger than the sum of its proper divisors (226177).

82871903 is a wasteful number, since it uses less digits than its factorization.

82871903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226176.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 82871903 is about 9103.4006283366. The cubic root of 82871903 is about 435.9825467160.

The spelling of 82871903 in words is "eighty-two million, eight hundred seventy-one thousand, nine hundred three".