71719368 has 128 divisors (see below), whose sum is σ = 216760320. Its totient is φ = 19342080.

The previous prime is 71719309. The next prime is 71719391. The reversal of 71719368 is 86391717.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244630 + ... + 244922.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^71719368 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 71719368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108380160).

71719368 is an abundant number, since it is smaller than the sum of its proper divisors (145040952).

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

71719368 is a wasteful number, since it uses less digits than its factorization.

71719368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 383 counting only the distinct ones).

The product of its digits is 63504, while the sum is 42.

The square root of 71719368 is about 8468.7288302318. The cubic root of 71719368 is about 415.4755626331.

The spelling of 71719368 in words is "seventy-one million, seven hundred nineteen thousand, three hundred sixty-eight".