71598481 has 2 divisors, whose sum is σ = 71598482. Its totient is φ = 71598480.

The previous prime is 71598463. The next prime is 71598487. The reversal of 71598481 is 18489517.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55726225 + 15872256 = 7465^2 + 3984^2 .

It is a cyclic number.

It is not a de Polignac number, because 71598481 - 2⁷ = 71598353 is a prime.

It is a super-2 number, since 2×71598481² = 10252684963014722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71598487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35799240 + 35799241.

It is an arithmetic number, because the mean of its divisors is an integer number (35799241).

Almost surely, 2^71598481 is an apocalyptic number.

It is an amenable number.

71598481 is a deficient number, since it is larger than the sum of its proper divisors (1).

71598481 is an equidigital number, since it uses as much as digits as its factorization.

71598481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 43.

The square root of 71598481 is about 8461.5885624391. The cubic root of 71598481 is about 415.2419955994.

The spelling of 71598481 in words is "seventy-one million, five hundred ninety-eight thousand, four hundred eighty-one".