726409967 has 2 divisors, whose sum is σ = 726409968. Its totient is φ = 726409966.

The previous prime is 726409963. The next prime is 726409973. The reversal of 726409967 is 769904627.

It is a weak prime.

It is an emirp because it is prime and its reverse (769904627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 726409967 - 2² = 726409963 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726409961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363204983 + 363204984.

It is an arithmetic number, because the mean of its divisors is an integer number (363204984).

Almost surely, 2^726409967 is an apocalyptic number.

726409967 is a deficient number, since it is larger than the sum of its proper divisors (1).

726409967 is an equidigital number, since it uses as much as digits as its factorization.

726409967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 726409967 is about 26951.9937481441. The cubic root of 726409967 is about 898.9328780214.

The spelling of 726409967 in words is "seven hundred twenty-six million, four hundred nine thousand, nine hundred sixty-seven".