726519947 has 8 divisors (see below), whose sum is σ = 729810432. Its totient is φ = 723236200.

The previous prime is 726519917. The next prime is 726519949. The reversal of 726519947 is 749915627.

726519947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 726519947 - 2²⁴ = 709742731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 726519895 and 726519904.

It is not an unprimeable number, because it can be changed into a prime (726519949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461672 + ... + 463242.

It is an arithmetic number, because the mean of its divisors is an integer number (91226304).

Almost surely, 2^726519947 is an apocalyptic number.

726519947 is a deficient number, since it is larger than the sum of its proper divisors (3290485).

726519947 is a wasteful number, since it uses less digits than its factorization.

726519947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369.

The product of its digits is 952560, while the sum is 50.

The square root of 726519947 is about 26954.0339652528. The cubic root of 726519947 is about 898.9782425095.

The spelling of 726519947 in words is "seven hundred twenty-six million, five hundred nineteen thousand, nine hundred forty-seven".