71319893 has 8 divisors (see below), whose sum is σ = 72122400. Its totient is φ = 70522000.

The previous prime is 71319881. The next prime is 71319907. The reversal of 71319893 is 39891317.

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 71319893 - 2²⁶ = 4211029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71319893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71319823) 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, 36446 + ... + 38352.

It is an arithmetic number, because the mean of its divisors is an integer number (9015300).

Almost surely, 2^71319893 is an apocalyptic number.

It is an amenable number.

71319893 is a deficient number, since it is larger than the sum of its proper divisors (802507).

71319893 is a wasteful number, since it uses less digits than its factorization.

71319893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307.

The product of its digits is 40824, while the sum is 41.

The square root of 71319893 is about 8445.1105972628. The cubic root of 71319893 is about 414.7027299681.

The spelling of 71319893 in words is "seventy-one million, three hundred nineteen thousand, eight hundred ninety-three".