71356873 has 4 divisors (see below), whose sum is σ = 81550720. Its totient is φ = 61163028.

The previous prime is 71356853. The next prime is 71356877. The reversal of 71356873 is 37865317.

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.

It is a cyclic number.

It is not a de Polignac number, because 71356873 - 2⁵ = 71356841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71356877) 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, 5096913 + ... + 5096926.

It is an arithmetic number, because the mean of its divisors is an integer number (20387680).

Almost surely, 2^71356873 is an apocalyptic number.

It is an amenable number.

71356873 is a deficient number, since it is larger than the sum of its proper divisors (10193847).

71356873 is a wasteful number, since it uses less digits than its factorization.

71356873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10193846.

The product of its digits is 105840, while the sum is 40.

The square root of 71356873 is about 8447.2997460727. The cubic root of 71356873 is about 414.7743932704.

The spelling of 71356873 in words is "seventy-one million, three hundred fifty-six thousand, eight hundred seventy-three".