82042047 has 12 divisors (see below), whose sum is σ = 118819584. Its totient is φ = 54549600.

The previous prime is 82042043. The next prime is 82042063. The reversal of 82042047 is 74024028.

It is not a de Polignac number, because 82042047 - 2² = 82042043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82042047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82042043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8454 + ... + 15347.

It is an arithmetic number, because the mean of its divisors is an integer number (9901632).

Almost surely, 2^82042047 is an apocalyptic number.

82042047 is a deficient number, since it is larger than the sum of its proper divisors (36777537).

82042047 is a wasteful number, since it uses less digits than its factorization.

82042047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24190 (or 24187 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 82042047 is about 9057.7064977841. The cubic root of 82042047 is about 434.5223929667.

The spelling of 82042047 in words is "eighty-two million, forty-two thousand, forty-seven".