71487868 has 24 divisors (see below), whose sum is σ = 127456560. Its totient is φ = 35078400.

The previous prime is 71487859. The next prime is 71487917. The reversal of 71487868 is 86878417.

It is a super-2 number, since 2×71487868² = 10221030542370848, which contains 22 as substring.

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, 48543 + ... + 49993.

It is an arithmetic number, because the mean of its divisors is an integer number (5310690).

Almost surely, 2^71487868 is an apocalyptic number.

It is an amenable number.

71487868 is a deficient number, since it is larger than the sum of its proper divisors (55968692).

71487868 is a wasteful number, since it uses less digits than its factorization.

71487868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677 (or 1675 counting only the distinct ones).

The product of its digits is 602112, while the sum is 49.

The square root of 71487868 is about 8455.0498520115. The cubic root of 71487868 is about 415.0280486195.

The spelling of 71487868 in words is "seventy-one million, four hundred eighty-seven thousand, eight hundred sixty-eight".