726836776 has 8 divisors (see below), whose sum is σ = 1362818970. Its totient is φ = 363418384.

The previous prime is 726836771. The next prime is 726836797. The reversal of 726836776 is 677638627.

It can be written as a sum of positive squares in only one way, i.e., 708943876 + 17892900 = 26626^2 + 4230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (726836771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45427291 + ... + 45427306.

Almost surely, 2^726836776 is an apocalyptic number.

It is an amenable number.

726836776 is a deficient number, since it is larger than the sum of its proper divisors (635982194).

726836776 is a wasteful number, since it uses less digits than its factorization.

726836776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90854603 (or 90854599 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 52.

The square root of 726836776 is about 26959.9105339762. The cubic root of 726836776 is about 899.1089023700.

It can be divided in two parts, 7268 and 36776, that added together give a palindrome (44044).

The spelling of 726836776 in words is "seven hundred twenty-six million, eight hundred thirty-six thousand, seven hundred seventy-six".