71156982 has 16 divisors (see below), whose sum is σ = 153261360. Its totient is φ = 21894432.

The previous prime is 71156929. The next prime is 71156993. The reversal of 71156982 is 28965117.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 71156982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456057 + ... + 456212.

It is an arithmetic number, because the mean of its divisors is an integer number (9578835).

Almost surely, 2^71156982 is an apocalyptic number.

71156982 is an abundant number, since it is smaller than the sum of its proper divisors (82104378).

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

71156982 is a wasteful number, since it uses less digits than its factorization.

71156982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912287.

The product of its digits is 30240, while the sum is 39.

The square root of 71156982 is about 8435.4597977822. The cubic root of 71156982 is about 414.3867305111.

The spelling of 71156982 in words is "seventy-one million, one hundred fifty-six thousand, nine hundred eighty-two".