71692065 has 24 divisors (see below), whose sum is σ = 124998120. Its totient is φ = 38010624.

The previous prime is 71692013. The next prime is 71692069. The reversal of 71692065 is 56029617.

It can be written as a sum of positive squares in 4 ways, for example, as 9345249 + 62346816 = 3057^2 + 7896^2 .

It is not a de Polignac number, because 71692065 - 2⁷ = 71691937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71692069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3181 + ... + 12389.

It is an arithmetic number, because the mean of its divisors is an integer number (5208255).

Almost surely, 2^71692065 is an apocalyptic number.

It is an amenable number.

71692065 is a deficient number, since it is larger than the sum of its proper divisors (53306055).

71692065 is a wasteful number, since it uses less digits than its factorization.

71692065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9393 (or 9390 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 71692065 is about 8467.1166875153. The cubic root of 71692065 is about 415.4228331804.

The spelling of 71692065 in words is "seventy-one million, six hundred ninety-two thousand, sixty-five".