71865226 has 8 divisors (see below), whose sum is σ = 108787140. Its totient is φ = 35602848.

The previous prime is 71865203. The next prime is 71865247. The reversal of 71865226 is 62256817.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71825625 + 39601 = 8475^2 + 199^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×71865226² = 10329221416062152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164611 + ... + 165046.

Almost surely, 2^71865226 is an apocalyptic number.

71865226 is a deficient number, since it is larger than the sum of its proper divisors (36921914).

71865226 is a wasteful number, since it uses less digits than its factorization.

71865226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329768.

The product of its digits is 40320, while the sum is 37.

The square root of 71865226 is about 8477.3360202365. The cubic root of 71865226 is about 415.7570272778.

The spelling of 71865226 in words is "seventy-one million, eight hundred sixty-five thousand, two hundred twenty-six".