71047392 has 48 divisors (see below), whose sum is σ = 200849040. Its totient is φ = 21860352.

The previous prime is 71047331. The next prime is 71047411. The reversal of 71047392 is 29374017.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27217 + ... + 29712.

It is an arithmetic number, because the mean of its divisors is an integer number (4184355).

Almost surely, 2^71047392 is an apocalyptic number.

It is an amenable number.

71047392 is an abundant number, since it is smaller than the sum of its proper divisors (129801648).

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

71047392 is a wasteful number, since it uses less digits than its factorization.

71047392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56955 (or 56947 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 71047392 is about 8428.9615018696. The cubic root of 71047392 is about 414.1738866736.

The spelling of 71047392 in words is "seventy-one million, forty-seven thousand, three hundred ninety-two".