71671296 has 80 divisors (see below), whose sum is σ = 197643600. Its totient is φ = 23052288.

The previous prime is 71671291. The next prime is 71671297. The reversal of 71671296 is 69217617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71671291) 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, 43740 + ... + 45348.

It is an arithmetic number, because the mean of its divisors is an integer number (2470545).

Almost surely, 2^71671296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71671296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98821800).

71671296 is an abundant number, since it is smaller than the sum of its proper divisors (125972304).

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

71671296 is a wasteful number, since it uses less digits than its factorization.

71671296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659 (or 1643 counting only the distinct ones).

The product of its digits is 31752, while the sum is 39.

The square root of 71671296 is about 8465.8901481179. The cubic root of 71671296 is about 415.3827136771.

The spelling of 71671296 in words is "seventy-one million, six hundred seventy-one thousand, two hundred ninety-six".