82540873 has 8 divisors (see below), whose sum is σ = 86042880. Its totient is φ = 79082640.

The previous prime is 82540853. The next prime is 82540891. The reversal of 82540873 is 37804528.

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

It is a cyclic number.

It is not a de Polignac number, because 82540873 - 2⁹ = 82540361 is a prime.

It is a super-3 number, since 3×82540873³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82540853) 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, 7065 + ... + 14662.

It is an arithmetic number, because the mean of its divisors is an integer number (10755360).

Almost surely, 2^82540873 is an apocalyptic number.

It is an amenable number.

82540873 is a deficient number, since it is larger than the sum of its proper divisors (3502007).

82540873 is a wasteful number, since it uses less digits than its factorization.

82540873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21887.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 82540873 is about 9085.2007682824. The cubic root of 82540873 is about 435.4012644791.

The spelling of 82540873 in words is "eighty-two million, five hundred forty thousand, eight hundred seventy-three".