71226443 has 4 divisors (see below), whose sum is σ = 73151520. Its totient is φ = 69301368.

The previous prime is 71226439. The next prime is 71226451. The reversal of 71226443 is 34462217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34462217 = 1433 ⋅24049.

It is a cyclic number.

It is not a de Polignac number, because 71226443 - 2² = 71226439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71226643) 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, 962483 + ... + 962556.

It is an arithmetic number, because the mean of its divisors is an integer number (18287880).

Almost surely, 2^71226443 is an apocalyptic number.

71226443 is a deficient number, since it is larger than the sum of its proper divisors (1925077).

71226443 is a wasteful number, since it uses less digits than its factorization.

71226443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925076.

The product of its digits is 8064, while the sum is 29.

The square root of 71226443 is about 8439.5759964586. The cubic root of 71226443 is about 414.5215233548.

The spelling of 71226443 in words is "seventy-one million, two hundred twenty-six thousand, four hundred forty-three".