71974443 has 16 divisors (see below), whose sum is σ = 97560320. Its totient is φ = 47192544.

The previous prime is 71974417. The next prime is 71974459. The reversal of 71974443 is 34447917.

It is not a de Polignac number, because 71974443 - 2⁵ = 71974411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71974543) 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 15 ways as a sum of consecutive naturals, for example, 49653 + ... + 51081.

It is an arithmetic number, because the mean of its divisors is an integer number (6097520).

Almost surely, 2^71974443 is an apocalyptic number.

71974443 is a deficient number, since it is larger than the sum of its proper divisors (25585877).

71974443 is a wasteful number, since it uses less digits than its factorization.

71974443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698.

The product of its digits is 84672, while the sum is 39.

The square root of 71974443 is about 8483.7752799093. The cubic root of 71974443 is about 415.9675359127.

The spelling of 71974443 in words is "seventy-one million, nine hundred seventy-four thousand, four hundred forty-three".