71987162 has 16 divisors (see below), whose sum is σ = 122408160. Its totient is φ = 31475952.

The previous prime is 71987159. The next prime is 71987189. The reversal of 71987162 is 26178917.

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, 72368 + ... + 73355.

It is an arithmetic number, because the mean of its divisors is an integer number (7650510).

Almost surely, 2^71987162 is an apocalyptic number.

71987162 is a deficient number, since it is larger than the sum of its proper divisors (50420998).

71987162 is a wasteful number, since it uses less digits than its factorization.

71987162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145757.

The product of its digits is 42336, while the sum is 41.

The square root of 71987162 is about 8484.5248541094. The cubic root of 71987162 is about 415.9920371072.

The spelling of 71987162 in words is "seventy-one million, nine hundred eighty-seven thousand, one hundred sixty-two".