71642982 has 8 divisors (see below), whose sum is σ = 143285976. Its totient is φ = 23880992.

The previous prime is 71642959. The next prime is 71643001. The reversal of 71642982 is 28924617.

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

71642982 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 71642982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5970243 + ... + 5970254.

It is an arithmetic number, because the mean of its divisors is an integer number (17910747).

Almost surely, 2^71642982 is an apocalyptic number.

71642982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71642982 is a wasteful number, since it uses less digits than its factorization.

71642982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11940502.

The product of its digits is 48384, while the sum is 39.

The square root of 71642982 is about 8464.2177429459. The cubic root of 71642982 is about 415.3280070004.

The spelling of 71642982 in words is "seventy-one million, six hundred forty-two thousand, nine hundred eighty-two".