71628265 has 8 divisors (see below), whose sum is σ = 86022720. Its totient is φ = 57256752.

The previous prime is 71628199. The next prime is 71628317. The reversal of 71628265 is 56282617.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71628265 is a prime.

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, 2116 + ... + 12154.

It is an arithmetic number, because the mean of its divisors is an integer number (10752840).

Almost surely, 2^71628265 is an apocalyptic number.

It is an amenable number.

71628265 is a deficient number, since it is larger than the sum of its proper divisors (14394455).

71628265 is a wasteful number, since it uses less digits than its factorization.

71628265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11471.

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

The square root of 71628265 is about 8463.3483326636. The cubic root of 71628265 is about 415.2995659691.

The spelling of 71628265 in words is "seventy-one million, six hundred twenty-eight thousand, two hundred sixty-five".