71038656 has 168 divisors, whose sum is σ = 224668080. Its totient is φ = 21325824.

The previous prime is 71038607. The next prime is 71038703. The reversal of 71038656 is 65683017.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 71038656.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 396775 + ... + 396953.

It is an arithmetic number, because the mean of its divisors is an integer number (1337310).

Almost surely, 2^71038656 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 71038656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112334040).

71038656 is an abundant number, since it is smaller than the sum of its proper divisors (153629424).

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

71038656 is a wasteful number, since it uses less digits than its factorization.

71038656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 71038656 is about 8428.4432726334. The cubic root of 71038656 is about 414.1569103461.

The spelling of 71038656 in words is "seventy-one million, thirty-eight thousand, six hundred fifty-six".