726558871 has 2 divisors, whose sum is σ = 726558872. Its totient is φ = 726558870.

The previous prime is 726558851. The next prime is 726558883. The reversal of 726558871 is 178855627.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 726558871 - 2⁷ = 726558743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726558851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363279435 + 363279436.

It is an arithmetic number, because the mean of its divisors is an integer number (363279436).

Almost surely, 2^726558871 is an apocalyptic number.

726558871 is a deficient number, since it is larger than the sum of its proper divisors (1).

726558871 is an equidigital number, since it uses as much as digits as its factorization.

726558871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 940800, while the sum is 49.

The square root of 726558871 is about 26954.7559996376. The cubic root of 726558871 is about 898.9942967621.

The spelling of 726558871 in words is "seven hundred twenty-six million, five hundred fifty-eight thousand, eight hundred seventy-one".