82576921 has 8 divisors (see below), whose sum is σ = 94547520. Its totient is φ = 70649808.

The previous prime is 82576919. The next prime is 82576951. The reversal of 82576921 is 12967528.

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 82576921 - 2¹ = 82576919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82576951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6691 + ... + 14488.

It is an arithmetic number, because the mean of its divisors is an integer number (11818440).

Almost surely, 2^82576921 is an apocalyptic number.

It is an amenable number.

82576921 is a deficient number, since it is larger than the sum of its proper divisors (11970599).

82576921 is a wasteful number, since it uses less digits than its factorization.

82576921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21743.

The product of its digits is 60480, while the sum is 40.

The square root of 82576921 is about 9087.1844374372. The cubic root of 82576921 is about 435.4646393862.

The spelling of 82576921 in words is "eighty-two million, five hundred seventy-six thousand, nine hundred twenty-one".