71875636 has 24 divisors (see below), whose sum is σ = 143983616. Its totient is φ = 30754080.

The previous prime is 71875627. The next prime is 71875669. The reversal of 71875636 is 63657817.

It is a super-2 number, since 2×71875636² = 10332214100808992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71875592 and 71875601.

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 7 ways as a sum of consecutive naturals, for example, 19501 + ... + 22891.

Almost surely, 2^71875636 is an apocalyptic number.

It is an amenable number.

71875636 is an abundant number, since it is smaller than the sum of its proper divisors (72107980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71875636 is a wasteful number, since it uses less digits than its factorization.

71875636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4159 (or 4157 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 71875636 is about 8477.9499880573. The cubic root of 71875636 is about 415.7771010646. Note that the first 3 decimals are identical.

The spelling of 71875636 in words is "seventy-one million, eight hundred seventy-five thousand, six hundred thirty-six".