71340589 has 2 divisors, whose sum is σ = 71340590. Its totient is φ = 71340588.

The previous prime is 71340571. The next prime is 71340593. The reversal of 71340589 is 98504317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70056900 + 1283689 = 8370^2 + 1133^2 .

It is a cyclic number.

It is not a de Polignac number, because 71340589 - 2⁵ = 71340557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71340539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35670294 + 35670295.

It is an arithmetic number, because the mean of its divisors is an integer number (35670295).

Almost surely, 2^71340589 is an apocalyptic number.

It is an amenable number.

71340589 is a deficient number, since it is larger than the sum of its proper divisors (1).

71340589 is an equidigital number, since it uses as much as digits as its factorization.

71340589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 71340589 is about 8446.3358327739. The cubic root of 71340589 is about 414.7428396639.

The spelling of 71340589 in words is "seventy-one million, three hundred forty thousand, five hundred eighty-nine".