71087116 has 6 divisors (see below), whose sum is σ = 124402460. Its totient is φ = 35543556.

The previous prime is 71087083. The next prime is 71087119. The reversal of 71087116 is 61178017.

It is a super-2 number, since 2×71087116² = 10106756122394912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71087119) by changing a digit.

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 as a sum of consecutive naturals, namely, 8885886 + ... + 8885893.

Almost surely, 2^71087116 is an apocalyptic number.

It is an amenable number.

71087116 is a deficient number, since it is larger than the sum of its proper divisors (53315344).

71087116 is a wasteful number, since it uses less digits than its factorization.

71087116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17771783 (or 17771781 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 31.

The square root of 71087116 is about 8431.3175720050. The cubic root of 71087116 is about 414.2510632249.

Subtracting from 71087116 its reverse (61178017), we obtain a palindrome (9909099).

The spelling of 71087116 in words is "seventy-one million, eighty-seven thousand, one hundred sixteen".