71106865 has 8 divisors (see below), whose sum is σ = 85375080. Its totient is φ = 56854272.

The previous prime is 71106851. The next prime is 71106887. The reversal of 71106865 is 56860117.

It can be written as a sum of positive squares in 4 ways, for example, as 13483584 + 57623281 = 3672^2 + 7591^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 71106865 - 2¹³ = 71098673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71106865.

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, 12031 + ... + 16939.

It is an arithmetic number, because the mean of its divisors is an integer number (10671885).

Almost surely, 2^71106865 is an apocalyptic number.

It is an amenable number.

71106865 is a deficient number, since it is larger than the sum of its proper divisors (14268215).

71106865 is a wasteful number, since it uses less digits than its factorization.

71106865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7811.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 71106865 is about 8432.4886599390. The cubic root of 71106865 is about 414.2894212623.

The spelling of 71106865 in words is "seventy-one million, one hundred six thousand, eight hundred sixty-five".