71965424 has 10 divisors (see below), whose sum is σ = 139433040. Its totient is φ = 35982704.

The previous prime is 71965423. The next prime is 71965441. The reversal of 71965424 is 42456917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71965423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2248904 + ... + 2248935.

It is an arithmetic number, because the mean of its divisors is an integer number (13943304).

Almost surely, 2^71965424 is an apocalyptic number.

It is an amenable number.

71965424 is a deficient number, since it is larger than the sum of its proper divisors (67467616).

71965424 is a wasteful number, since it uses less digits than its factorization.

71965424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4497847 (or 4497841 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 71965424 is about 8483.2437192385. The cubic root of 71965424 is about 415.9501604492.

The spelling of 71965424 in words is "seventy-one million, nine hundred sixty-five thousand, four hundred twenty-four".