71191296 has 162 divisors, whose sum is σ = 228226908. Its totient is φ = 21166080.

The previous prime is 71191249. The next prime is 71191297. The reversal of 71191296 is 69219117.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 71191296.

It is not an unprimeable number, because it can be changed into a prime (71191297) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1343206 + ... + 1343258.

Almost surely, 2^71191296 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 71191296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114113454).

71191296 is an abundant number, since it is smaller than the sum of its proper divisors (157035612).

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

71191296 is a wasteful number, since it uses less digits than its factorization.

71191296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 69 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 71191296 is about 8437.4934666641. The cubic root of 71191296 is about 414.4533296502.

The spelling of 71191296 in words is "seventy-one million, one hundred ninety-one thousand, two hundred ninety-six".