71680903 has 16 divisors (see below), whose sum is σ = 85764096. Its totient is φ = 58576320.

The previous prime is 71680883. The next prime is 71680919. The reversal of 71680903 is 30908617.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71680903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71680403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68875 + ... + 69907.

It is an arithmetic number, because the mean of its divisors is an integer number (5360256).

Almost surely, 2^71680903 is an apocalyptic number.

71680903 is a deficient number, since it is larger than the sum of its proper divisors (14083193).

71680903 is a wasteful number, since it uses less digits than its factorization.

71680903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 71680903 is about 8466.4575236636. The cubic root of 71680903 is about 415.4012724943.

The spelling of 71680903 in words is "seventy-one million, six hundred eighty thousand, nine hundred three".