82580642 has 8 divisors (see below), whose sum is σ = 126892332. Its totient is φ = 40283200.

The previous prime is 82580639. The next prime is 82580651. The reversal of 82580642 is 24608528.

It can be written as a sum of positive squares in 2 ways, for example, as 71081761 + 11498881 = 8431^2 + 3391^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 503459 + ... + 503622.

Almost surely, 2^82580642 is an apocalyptic number.

82580642 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

82580642 is a deficient number, since it is larger than the sum of its proper divisors (44311690).

82580642 is a wasteful number, since it uses less digits than its factorization.

82580642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007124.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 82580642 is about 9087.3891740147. The cubic root of 82580642 is about 435.4711801144.

The spelling of 82580642 in words is "eighty-two million, five hundred eighty thousand, six hundred forty-two".