71798959 has 2 divisors, whose sum is σ = 71798960. Its totient is φ = 71798958.

The previous prime is 71798933. The next prime is 71798999. The reversal of 71798959 is 95989717.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71798959 - 2¹¹ = 71796911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71798999) 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 as a sum of consecutive naturals, namely, 35899479 + 35899480.

It is an arithmetic number, because the mean of its divisors is an integer number (35899480).

Almost surely, 2^71798959 is an apocalyptic number.

71798959 is a deficient number, since it is larger than the sum of its proper divisors (1).

71798959 is an equidigital number, since it uses as much as digits as its factorization.

71798959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 55.

The square root of 71798959 is about 8473.4266386156. The cubic root of 71798959 is about 415.6291979827.

The spelling of 71798959 in words is "seventy-one million, seven hundred ninety-eight thousand, nine hundred fifty-nine".