726430453 has 4 divisors (see below), whose sum is σ = 830206240. Its totient is φ = 622654668.

The previous prime is 726430447. The next prime is 726430487. The reversal of 726430453 is 354034627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354034627 = 1069 ⋅331183.

It is a cyclic number.

It is not a de Polignac number, because 726430453 - 2²⁹ = 189559541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726430423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51887883 + ... + 51887896.

It is an arithmetic number, because the mean of its divisors is an integer number (207551560).

Almost surely, 2^726430453 is an apocalyptic number.

It is an amenable number.

726430453 is a deficient number, since it is larger than the sum of its proper divisors (103775787).

726430453 is a wasteful number, since it uses less digits than its factorization.

726430453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103775786.

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 726430453 is about 26952.3737915605. The cubic root of 726430453 is about 898.9413284221.

The spelling of 726430453 in words is "seven hundred twenty-six million, four hundred thirty thousand, four hundred fifty-three".