726230881 has 4 divisors (see below), whose sum is σ = 728425264. Its totient is φ = 724036500.

The previous prime is 726230873. The next prime is 726230891. The reversal of 726230881 is 188032627.

726230881 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 a cyclic number.

It is not a de Polignac number, because 726230881 - 2³ = 726230873 is a prime.

It is a super-2 number, since 2×726230881² = 1054822585036072322, which contains 22 as substring.

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 726230881.

It is not an unprimeable number, because it can be changed into a prime (726230821) 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, 1096695 + ... + 1097356.

It is an arithmetic number, because the mean of its divisors is an integer number (182106316).

Almost surely, 2^726230881 is an apocalyptic number.

It is an amenable number.

726230881 is a deficient number, since it is larger than the sum of its proper divisors (2194383).

726230881 is a wasteful number, since it uses less digits than its factorization.

726230881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194382.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 726230881 is about 26948.6712288380. The cubic root of 726230881 is about 898.8589989301.

The spelling of 726230881 in words is "seven hundred twenty-six million, two hundred thirty thousand, eight hundred eighty-one".