71268893 has 4 divisors (see below), whose sum is σ = 71960928. Its totient is φ = 70576860.

The previous prime is 71268889. The next prime is 71268937. The reversal of 71268893 is 39886217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39886217 = 7 ⋅5698031.

It is a cyclic number.

It is not a de Polignac number, because 71268893 - 2² = 71268889 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 (71268803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345863 + ... + 346068.

It is an arithmetic number, because the mean of its divisors is an integer number (17990232).

Almost surely, 2^71268893 is an apocalyptic number.

It is an amenable number.

71268893 is a deficient number, since it is larger than the sum of its proper divisors (692035).

71268893 is a wasteful number, since it uses less digits than its factorization.

71268893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692034.

The product of its digits is 145152, while the sum is 44.

The square root of 71268893 is about 8442.0905586235. The cubic root of 71268893 is about 414.6038567474.

The spelling of 71268893 in words is "seventy-one million, two hundred sixty-eight thousand, eight hundred ninety-three".