726216003 has 8 divisors (see below), whose sum is σ = 1075875600. Its totient is φ = 484143984.

The previous prime is 726215993. The next prime is 726216037. The reversal of 726216003 is 300612627.

It is a happy number.

It is not a de Polignac number, because 726216003 - 2⁶ = 726215939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 26896889 = 726216003 / (7 + 2 + 6 + 2 + 1 + 6 + 0 + 0 + 3).

It is not an unprimeable number, because it can be changed into a prime (726216503) 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, 13448418 + ... + 13448471.

It is an arithmetic number, because the mean of its divisors is an integer number (134484450).

Almost surely, 2^726216003 is an apocalyptic number.

726216003 is a deficient number, since it is larger than the sum of its proper divisors (349659597).

726216003 is a wasteful number, since it uses less digits than its factorization.

726216003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26896898 (or 26896892 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 726216003 is about 26948.3951841292. The cubic root of 726216003 is about 898.8528607006.

The spelling of 726216003 in words is "seven hundred twenty-six million, two hundred sixteen thousand, three".