82640058 has 16 divisors (see below), whose sum is σ = 172466496. Its totient is φ = 26348960.

The previous prime is 82640021. The next prime is 82640071. The reversal of 82640058 is 85004628.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299283 + ... + 299558.

It is an arithmetic number, because the mean of its divisors is an integer number (10779156).

Almost surely, 2^82640058 is an apocalyptic number.

82640058 is an abundant number, since it is smaller than the sum of its proper divisors (89826438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82640058 is a wasteful number, since it uses less digits than its factorization.

82640058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598869.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 82640058 is about 9090.6577319796. The cubic root of 82640058 is about 435.5755942246.

The spelling of 82640058 in words is "eighty-two million, six hundred forty thousand, fifty-eight".