71835065 has 16 divisors (see below), whose sum is σ = 87289488. Its totient is φ = 56749056.

The previous prime is 71835041. The next prime is 71835077. The reversal of 71835065 is 56053817.

It can be written as a sum of positive squares in 8 ways, for example, as 4791721 + 67043344 = 2189^2 + 8188^2 .

It is a cyclic number.

It is not a de Polignac number, because 71835065 - 2²² = 67640761 is a prime.

It is a Duffinian number.

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, 229349 + ... + 229661.

It is an arithmetic number, because the mean of its divisors is an integer number (5455593).

Almost surely, 2^71835065 is an apocalyptic number.

It is an amenable number.

71835065 is a deficient number, since it is larger than the sum of its proper divisors (15454423).

71835065 is a wasteful number, since it uses less digits than its factorization.

71835065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 71835065 is about 8475.5569138553. The cubic root of 71835065 is about 415.6988563419.

The spelling of 71835065 in words is "seventy-one million, eight hundred thirty-five thousand, sixty-five".