726438077 has 8 divisors (see below), whose sum is σ = 767379360. Its totient is φ = 685767600.

The previous prime is 726438071. The next prime is 726438103. The reversal of 726438077 is 770834627.

726438077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 726438077 - 2⁸ = 726437821 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 (726438071) 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, 62174 + ... + 72927.

It is an arithmetic number, because the mean of its divisors is an integer number (95922420).

Almost surely, 2^726438077 is an apocalyptic number.

It is an amenable number.

726438077 is a deficient number, since it is larger than the sum of its proper divisors (40941283).

726438077 is a wasteful number, since it uses less digits than its factorization.

726438077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135403.

The product of its (nonzero) digits is 395136, while the sum is 44.

The square root of 726438077 is about 26952.5152258560. The cubic root of 726438077 is about 898.9444732539.

The spelling of 726438077 in words is "seven hundred twenty-six million, four hundred thirty-eight thousand, seventy-seven".