71226656 has 12 divisors (see below), whose sum is σ = 140227542. Its totient is φ = 35613312.

The previous prime is 71226643. The next prime is 71226671. The reversal of 71226656 is 65662217.

It can be written as a sum of positive squares in only one way, i.e., 47059600 + 24167056 = 6860^2 + 4916^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112885 + ... + 1112948.

Almost surely, 2^71226656 is an apocalyptic number.

It is an amenable number.

71226656 is a deficient number, since it is larger than the sum of its proper divisors (69000886).

71226656 is a wasteful number, since it uses less digits than its factorization.

71226656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225843 (or 2225835 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 71226656 is about 8439.5886155665. The cubic root of 71226656 is about 414.5219365581.

The spelling of 71226656 in words is "seventy-one million, two hundred twenty-six thousand, six hundred fifty-six".