726266737 has 4 divisors (see below), whose sum is σ = 830019136. Its totient is φ = 622514340.

The previous prime is 726266713. The next prime is 726266753. The reversal of 726266737 is 737662627.

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: 737662627 = 13 ⋅56743279.

It is not a de Polignac number, because 726266737 - 2⁷ = 726266609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726266767) 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, 51876189 + ... + 51876202.

It is an arithmetic number, because the mean of its divisors is an integer number (207504784).

Almost surely, 2^726266737 is an apocalyptic number.

It is an amenable number.

726266737 is a deficient number, since it is larger than the sum of its proper divisors (103752399).

726266737 is a wasteful number, since it uses less digits than its factorization.

726266737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103752398.

The product of its digits is 889056, while the sum is 46.

The square root of 726266737 is about 26949.3364853386. The cubic root of 726266737 is about 898.8737917270.

The spelling of 726266737 in words is "seven hundred twenty-six million, two hundred sixty-six thousand, seven hundred thirty-seven".