71371616 has 24 divisors (see below), whose sum is σ = 142614360. Its totient is φ = 35152128.

The previous prime is 71371613. The next prime is 71371621. The reversal of 71371616 is 61617317.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71371613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14501 + ... + 18788.

It is an arithmetic number, because the mean of its divisors is an integer number (5942265).

Almost surely, 2^71371616 is an apocalyptic number.

It is an amenable number.

71371616 is a deficient number, since it is larger than the sum of its proper divisors (71242744).

71371616 is a wasteful number, since it uses less digits than its factorization.

71371616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33366 (or 33358 counting only the distinct ones).

The product of its digits is 5292, while the sum is 32.

The square root of 71371616 is about 8448.1723467268. The cubic root of 71371616 is about 414.8029567314.

The spelling of 71371616 in words is "seventy-one million, three hundred seventy-one thousand, six hundred sixteen".