71335589 has 4 divisors (see below), whose sum is σ = 76822956. Its totient is φ = 65848224.

The previous prime is 71335573. The next prime is 71335597. The reversal of 71335589 is 98553317.

It is a happy number.

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 17430625 + 53904964 = 4175^2 + 7342^2 .

It is not a de Polignac number, because 71335589 - 2⁴ = 71335573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71335529) 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, 2743664 + ... + 2743689.

It is an arithmetic number, because the mean of its divisors is an integer number (19205739).

Almost surely, 2^71335589 is an apocalyptic number.

It is an amenable number.

71335589 is a deficient number, since it is larger than the sum of its proper divisors (5487367).

71335589 is a wasteful number, since it uses less digits than its factorization.

71335589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5487366.

The product of its digits is 113400, while the sum is 41.

The square root of 71335589 is about 8446.0398412510. The cubic root of 71335589 is about 414.7331501698.

The spelling of 71335589 in words is "seventy-one million, three hundred thirty-five thousand, five hundred eighty-nine".