726117632 has 18 divisors (see below), whose sum is σ = 1449399378. Its totient is φ = 363058688.

The previous prime is 726117629. The next prime is 726117647. The reversal of 726117632 is 236711627.

It can be written as a sum of positive squares in only one way, i.e., 550183936 + 175933696 = 23456^2 + 13264^2 .

It is a junction number, because it is equal to n+sod(n) for n = 726117592 and 726117601.

It is a congruent number.

It is an unprimeable number.

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, 1417943 + ... + 1418454.

Almost surely, 2^726117632 is an apocalyptic number.

It is an amenable number.

726117632 is a deficient number, since it is larger than the sum of its proper divisors (723281746).

726117632 is an equidigital number, since it uses as much as digits as its factorization.

726117632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836413 (or 2836399 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 726117632 is about 26946.5699486966. The cubic root of 726117632 is about 898.8122735809.

The spelling of 726117632 in words is "seven hundred twenty-six million, one hundred seventeen thousand, six hundred thirty-two".