71287368 has 32 divisors (see below), whose sum is σ = 178483200. Its totient is φ = 23727168.

The previous prime is 71287351. The next prime is 71287427. The reversal of 71287368 is 86378217.

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, 18105 + ... + 21687.

It is an arithmetic number, because the mean of its divisors is an integer number (5577600).

Almost surely, 2^71287368 is an apocalyptic number.

It is an amenable number.

71287368 is an abundant number, since it is smaller than the sum of its proper divisors (107195832).

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

71287368 is a wasteful number, since it uses less digits than its factorization.

71287368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421 (or 4417 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 71287368 is about 8443.1847072062. The cubic root of 71287368 is about 414.6396795033.

The spelling of 71287368 in words is "seventy-one million, two hundred eighty-seven thousand, three hundred sixty-eight".