71868855 has 8 divisors (see below), whose sum is σ = 114990192. Its totient is φ = 38330048.

The previous prime is 71868833. The next prime is 71868857. The reversal of 71868855 is 55886817.

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 71868855 - 2⁹ = 71868343 is a prime.

It is a super-2 number, since 2×71868855² = 10330264638022050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71868857) 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, 2395614 + ... + 2395643.

It is an arithmetic number, because the mean of its divisors is an integer number (14373774).

Almost surely, 2^71868855 is an apocalyptic number.

71868855 is a deficient number, since it is larger than the sum of its proper divisors (43121337).

71868855 is a wasteful number, since it uses less digits than its factorization.

71868855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791265.

The product of its digits is 537600, while the sum is 48.

The square root of 71868855 is about 8477.5500588319. The cubic root of 71868855 is about 415.7640253626.

The spelling of 71868855 in words is "seventy-one million, eight hundred sixty-eight thousand, eight hundred fifty-five".