726782061 has 4 divisors (see below), whose sum is σ = 969042752. Its totient is φ = 484521372.

The previous prime is 726782051. The next prime is 726782071. The reversal of 726782061 is 160287627.

726782061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is an interprime number because it is at equal distance from previous prime (726782051) and next prime (726782071).

It is not a de Polignac number, because 726782061 - 2¹⁸ = 726519917 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 (726782051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121130341 + ... + 121130346.

It is an arithmetic number, because the mean of its divisors is an integer number (242260688).

Almost surely, 2^726782061 is an apocalyptic number.

It is an amenable number.

726782061 is a deficient number, since it is larger than the sum of its proper divisors (242260691).

726782061 is a wasteful number, since it uses less digits than its factorization.

726782061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242260690.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 726782061 is about 26958.8957674457. The cubic root of 726782061 is about 899.0863406892.

The spelling of 726782061 in words is "seven hundred twenty-six million, seven hundred eighty-two thousand, sixty-one".