71393952 has 96 divisors (see below), whose sum is σ = 216082944. Its totient is φ = 20217600.

The previous prime is 71393947. The next prime is 71393983. The reversal of 71393952 is 25939317.

71393952 is nontrivially palindromic in base 11.

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

It is a self number, because there is not a number n which added to its sum of digits gives 71393952.

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, 87627 + ... + 88437.

It is an arithmetic number, because the mean of its divisors is an integer number (2250864).

Almost surely, 2^71393952 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 71393952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108041472).

71393952 is an abundant number, since it is smaller than the sum of its proper divisors (144688992).

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

71393952 is a wasteful number, since it uses less digits than its factorization.

71393952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962 (or 954 counting only the distinct ones).

The product of its digits is 51030, while the sum is 39.

The square root of 71393952 is about 8449.4941860445. The cubic root of 71393952 is about 414.8462235697.

The spelling of 71393952 in words is "seventy-one million, three hundred ninety-three thousand, nine hundred fifty-two".