82041891 has 8 divisors (see below), whose sum is σ = 110618640. Its totient is φ = 54079872.

The previous prime is 82041877. The next prime is 82041901. The reversal of 82041891 is 19814028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82041891 - 2⁵ = 82041859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82041821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153370 + ... + 153903.

It is an arithmetic number, because the mean of its divisors is an integer number (13827330).

Almost surely, 2^82041891 is an apocalyptic number.

82041891 is a deficient number, since it is larger than the sum of its proper divisors (28576749).

82041891 is a wasteful number, since it uses less digits than its factorization.

82041891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307365.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 82041891 is about 9057.6978863285. The cubic root of 82041891 is about 434.5221175570.

The spelling of 82041891 in words is "eighty-two million, forty-one thousand, eight hundred ninety-one".