71995227 has 4 divisors (see below), whose sum is σ = 95993640. Its totient is φ = 47996816.

The previous prime is 71995223. The next prime is 71995241. The reversal of 71995227 is 72259917.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71995227 - 2² = 71995223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71995223) 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, 11999202 + ... + 11999207.

It is an arithmetic number, because the mean of its divisors is an integer number (23998410).

Almost surely, 2^71995227 is an apocalyptic number.

71995227 is a deficient number, since it is larger than the sum of its proper divisors (23998413).

71995227 is a wasteful number, since it uses less digits than its factorization.

71995227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23998412.

The product of its digits is 79380, while the sum is 42.

The square root of 71995227 is about 8485.0001178550. Note that the first 3 decimals coincide. The cubic root of 71995227 is about 416.0075715923.

The spelling of 71995227 in words is "seventy-one million, nine hundred ninety-five thousand, two hundred twenty-seven".