71068287 has 8 divisors (see below), whose sum is σ = 94811904. Its totient is φ = 47351768.

The previous prime is 71068271. The next prime is 71068289. The reversal of 71068287 is 78286017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71068287 - 2⁴ = 71068271 is a prime.

It is a super-2 number, since 2×71068287² = 10101402834228738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71068289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448 + ... + 11930.

It is an arithmetic number, because the mean of its divisors is an integer number (11851488).

Almost surely, 2^71068287 is an apocalyptic number.

71068287 is a deficient number, since it is larger than the sum of its proper divisors (23743617).

71068287 is a wasteful number, since it uses less digits than its factorization.

71068287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13549.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 71068287 is about 8430.2008872861. The cubic root of 71068287 is about 414.2144854667.

The spelling of 71068287 in words is "seventy-one million, sixty-eight thousand, two hundred eighty-seven".