71444443 has 8 divisors (see below), whose sum is σ = 82769888. Its totient is φ = 60398784.

The previous prime is 71444423. The next prime is 71444453. The reversal of 71444443 is 34444417.

It is a happy number.

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 71444443 - 2¹⁷ = 71313371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71444423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69396 + ... + 70417.

It is an arithmetic number, because the mean of its divisors is an integer number (10346236).

Almost surely, 2^71444443 is an apocalyptic number.

71444443 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

71444443 is a deficient number, since it is larger than the sum of its proper divisors (11325445).

71444443 is a wasteful number, since it uses less digits than its factorization.

71444443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139893.

The product of its digits is 21504, while the sum is 31.

The square root of 71444443 is about 8452.4814699590. The cubic root of 71444443 is about 414.9439959264.

It can be divided in two parts, 7 and 1444443, that multiplied together give a palindrome (10111101).

The spelling of 71444443 in words is "seventy-one million, four hundred forty-four thousand, four hundred forty-three".