71644116 has 24 divisors (see below), whose sum is σ = 167658400. Its totient is φ = 23811552.

The previous prime is 71644091. The next prime is 71644127. The reversal of 71644116 is 61144617.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4366 + ... + 12741.

Almost surely, 2^71644116 is an apocalyptic number.

It is an amenable number.

71644116 is an abundant number, since it is smaller than the sum of its proper divisors (96014284).

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

71644116 is a wasteful number, since it uses less digits than its factorization.

71644116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17463 (or 17461 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 71644116 is about 8464.2847305605. The cubic root of 71644116 is about 415.3301983268.

The spelling of 71644116 in words is "seventy-one million, six hundred forty-four thousand, one hundred sixteen".