71856803 has 8 divisors (see below), whose sum is σ = 75736320. Its totient is φ = 67987080.

The previous prime is 71856797. The next prime is 71856821. The reversal of 71856803 is 30865817.

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 71856803 - 2⁴ = 71856787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71856703) 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 in 7 ways as a sum of consecutive naturals, for example, 16418 + ... + 20328.

It is an arithmetic number, because the mean of its divisors is an integer number (9467040).

Almost surely, 2^71856803 is an apocalyptic number.

71856803 is a deficient number, since it is larger than the sum of its proper divisors (3879517).

71856803 is a wasteful number, since it uses less digits than its factorization.

71856803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 71856803 is about 8476.8392104605. The cubic root of 71856803 is about 415.7407836392.

The spelling of 71856803 in words is "seventy-one million, eight hundred fifty-six thousand, eight hundred three".