71873912 has 32 divisors (see below), whose sum is σ = 147668400. Its totient is φ = 32524800.

The previous prime is 71873911. The next prime is 71873917. The reversal of 71873912 is 21937817.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71873911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19514 + ... + 22902.

Almost surely, 2^71873912 is an apocalyptic number.

It is an amenable number.

71873912 is an abundant number, since it is smaller than the sum of its proper divisors (75794488).

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

71873912 is a wasteful number, since it uses less digits than its factorization.

71873912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647 (or 3643 counting only the distinct ones).

The product of its digits is 21168, while the sum is 38.

The square root of 71873912 is about 8477.8483119244. The cubic root of 71873912 is about 415.7737767789.

The spelling of 71873912 in words is "seventy-one million, eight hundred seventy-three thousand, nine hundred twelve".