726790898 has 4 divisors (see below), whose sum is σ = 1090186350. Its totient is φ = 363395448.

The previous prime is 726790853. The next prime is 726790903. The reversal of 726790898 is 898097627.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 654489889 + 72301009 = 25583^2 + 8503^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181697723 + ... + 181697726.

Almost surely, 2^726790898 is an apocalyptic number.

726790898 is a deficient number, since it is larger than the sum of its proper divisors (363395452).

726790898 is a wasteful number, since it uses less digits than its factorization.

726790898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363395451.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The square root of 726790898 is about 26959.0596646100. The cubic root of 726790898 is about 899.0899846948.

The spelling of 726790898 in words is "seven hundred twenty-six million, seven hundred ninety thousand, eight hundred ninety-eight".