71092589 has 4 divisors (see below), whose sum is σ = 75274524. Its totient is φ = 66910656.

The previous prime is 71092559. The next prime is 71092627. The reversal of 71092589 is 98529017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47375689 + 23716900 = 6883^2 + 4870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71092589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71092559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2090942 + ... + 2090975.

It is an arithmetic number, because the mean of its divisors is an integer number (18818631).

Almost surely, 2^71092589 is an apocalyptic number.

It is an amenable number.

71092589 is a deficient number, since it is larger than the sum of its proper divisors (4181935).

71092589 is a wasteful number, since it uses less digits than its factorization.

71092589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181934.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 71092589 is about 8431.6421295024. The cubic root of 71092589 is about 414.2616940210.

The spelling of 71092589 in words is "seventy-one million, ninety-two thousand, five hundred eighty-nine".