71928124 has 6 divisors (see below), whose sum is σ = 125874224. Its totient is φ = 35964060.

The previous prime is 71928113. The next prime is 71928161. The reversal of 71928124 is 42182917.

It is a self number, because there is not a number n which added to its sum of digits gives 71928124.

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 as a sum of consecutive naturals, namely, 8991012 + ... + 8991019.

Almost surely, 2^71928124 is an apocalyptic number.

It is an amenable number.

71928124 is a deficient number, since it is larger than the sum of its proper divisors (53946100).

71928124 is a wasteful number, since it uses less digits than its factorization.

71928124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17982035 (or 17982033 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 71928124 is about 8481.0449827837. The cubic root of 71928124 is about 415.8782850894.

The spelling of 71928124 in words is "seventy-one million, nine hundred twenty-eight thousand, one hundred twenty-four".