71097696 has 192 divisors, whose sum is σ = 224985600. Its totient is φ = 21772800.

The previous prime is 71097661. The next prime is 71097703. The reversal of 71097696 is 69679017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1001341 + ... + 1001411.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^71097696 is an apocalyptic number.

71097696 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71097696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112492800).

71097696 is an abundant number, since it is smaller than the sum of its proper divisors (153887904).

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

71097696 is a wasteful number, since it uses less digits than its factorization.

71097696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 71097696 is about 8431.9449713574. The cubic root of 71097696 is about 414.2716134038.

The spelling of 71097696 in words is "seventy-one million, ninety-seven thousand, six hundred ninety-six".