71563296 has 96 divisors (see below), whose sum is σ = 216881280. Its totient is φ = 20238336.

The previous prime is 71563249. The next prime is 71563313. The reversal of 71563296 is 69236517.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72760 + ... + 73736.

It is an arithmetic number, because the mean of its divisors is an integer number (2259180).

Almost surely, 2^71563296 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 71563296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108440640).

71563296 is an abundant number, since it is smaller than the sum of its proper divisors (145317984).

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

71563296 is a wasteful number, since it uses less digits than its factorization.

71563296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1098 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 71563296 is about 8459.5092056218. The cubic root of 71563296 is about 415.1739649031.

The spelling of 71563296 in words is "seventy-one million, five hundred sixty-three thousand, two hundred ninety-six".