82058991 has 8 divisors (see below), whose sum is σ = 125042304. Its totient is φ = 46890840.

The previous prime is 82058989. The next prime is 82059023. The reversal of 82058991 is 19985028.

It is a happy number.

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

It is not a de Polignac number, because 82058991 - 2¹ = 82058989 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82058941) 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, 1953765 + ... + 1953806.

It is an arithmetic number, because the mean of its divisors is an integer number (15630288).

Almost surely, 2^82058991 is an apocalyptic number.

82058991 is a deficient number, since it is larger than the sum of its proper divisors (42983313).

82058991 is a wasteful number, since it uses less digits than its factorization.

82058991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907581.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 82058991 is about 9058.6417856100. The cubic root of 82058991 is about 434.5523046234.

The spelling of 82058991 in words is "eighty-two million, fifty-eight thousand, nine hundred ninety-one".