726928087 has 16 divisors (see below), whose sum is σ = 809429760. Its totient is φ = 649674432.

The previous prime is 726928067. The next prime is 726928093. The reversal of 726928087 is 780829627.

726928087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726928087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 726928087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726928067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20508 + ... + 43294.

It is an arithmetic number, because the mean of its divisors is an integer number (50589360).

Almost surely, 2^726928087 is an apocalyptic number.

726928087 is a deficient number, since it is larger than the sum of its proper divisors (82501673).

726928087 is a wasteful number, since it uses less digits than its factorization.

726928087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22902.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 726928087 is about 26961.6039396769. The cubic root of 726928087 is about 899.1465518570.

The spelling of 726928087 in words is "seven hundred twenty-six million, nine hundred twenty-eight thousand, eighty-seven".