71069952 has 72 divisors (see below), whose sum is σ = 195733440. Its totient is φ = 22865920.

The previous prime is 71069951. The next prime is 71069993. The reversal of 71069952 is 25996017.

It is a self number, because there is not a number n which added to its sum of digits gives 71069952.

It is not an unprimeable number, because it can be changed into a prime (71069951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20677 + ... + 23867.

It is an arithmetic number, because the mean of its divisors is an integer number (2718520).

Almost surely, 2^71069952 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 71069952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97866720).

71069952 is an abundant number, since it is smaller than the sum of its proper divisors (124663488).

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

71069952 is a wasteful number, since it uses less digits than its factorization.

71069952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239 (or 3225 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 71069952 is about 8430.2996388029. The cubic root of 71069952 is about 414.2177202041.

The spelling of 71069952 in words is "seventy-one million, sixty-nine thousand, nine hundred fifty-two".