82041971 has 6 divisors (see below), whose sum is σ = 89533116. Its totient is φ = 74556300.

The previous prime is 82041959. The next prime is 82041977. The reversal of 82041971 is 17914028.

It is not a de Polignac number, because 82041971 - 2⁶ = 82041907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82041977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28676 + ... + 31406.

It is an arithmetic number, because the mean of its divisors is an integer number (14922186).

Almost surely, 2^82041971 is an apocalyptic number.

82041971 is a deficient number, since it is larger than the sum of its proper divisors (7491145).

82041971 is an frugal number, since it uses more digits than its factorization.

82041971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5473 (or 2742 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 82041971 is about 9057.7023024606. The cubic root of 82041971 is about 434.5222587928.

Adding to 82041971 its reverse (17914028), we get a palindrome (99955999).

The spelling of 82041971 in words is "eighty-two million, forty-one thousand, nine hundred seventy-one".