71938528 has 24 divisors (see below), whose sum is σ = 141824088. Its totient is φ = 35919744.

The previous prime is 71938501. The next prime is 71938553. The reversal of 71938528 is 82583917.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 36250 + ... + 38182.

It is an arithmetic number, because the mean of its divisors is an integer number (5909337).

Almost surely, 2^71938528 is an apocalyptic number.

It is an amenable number.

71938528 is a deficient number, since it is larger than the sum of its proper divisors (69885560).

71938528 is a wasteful number, since it uses less digits than its factorization.

71938528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106 (or 3098 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 71938528 is about 8481.6583284167. The cubic root of 71938528 is about 415.8983356104.

The spelling of 71938528 in words is "seventy-one million, nine hundred thirty-eight thousand, five hundred twenty-eight".