726048731 has 4 divisors (see below), whose sum is σ = 726103200. Its totient is φ = 725994264.

The previous prime is 726048707. The next prime is 726048793. The reversal of 726048731 is 137840627.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 137840627 = 271 ⋅508637.

It is a cyclic number.

It is not a de Polignac number, because 726048731 - 2²⁶ = 658939867 is a prime.

It is a super-2 number, since 2×726048731² = 1054293519573420722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726044731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7685 + ... + 38873.

It is an arithmetic number, because the mean of its divisors is an integer number (181525800).

Almost surely, 2^726048731 is an apocalyptic number.

726048731 is a deficient number, since it is larger than the sum of its proper divisors (54469).

726048731 is a wasteful number, since it uses less digits than its factorization.

726048731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54468.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 726048731 is about 26945.2914439610. The cubic root of 726048731 is about 898.7838433741.

The spelling of 726048731 in words is "seven hundred twenty-six million, forty-eight thousand, seven hundred thirty-one".