71268905 has 16 divisors (see below), whose sum is σ = 91375680. Its totient is φ = 53203392.

The previous prime is 71268889. The next prime is 71268937. The reversal of 71268905 is 50986217.

It is a cyclic number.

It is not a de Polignac number, because 71268905 - 2⁴ = 71268889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767 + ... + 11963.

It is an arithmetic number, because the mean of its divisors is an integer number (5710980).

Almost surely, 2^71268905 is an apocalyptic number.

It is an amenable number.

71268905 is a deficient number, since it is larger than the sum of its proper divisors (20106775).

71268905 is a wasteful number, since it uses less digits than its factorization.

71268905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11288.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 71268905 is about 8442.0912693479. The cubic root of 71268905 is about 414.6038800172.

The spelling of 71268905 in words is "seventy-one million, two hundred sixty-eight thousand, nine hundred five".