726667798 has 4 divisors (see below), whose sum is σ = 1090001700. Its totient is φ = 363333898.

The previous prime is 726667717. The next prime is 726667847. The reversal of 726667798 is 897766627.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181666948 + ... + 181666951.

It is an arithmetic number, because the mean of its divisors is an integer number (272500425).

Almost surely, 2^726667798 is an apocalyptic number.

726667798 is a deficient number, since it is larger than the sum of its proper divisors (363333902).

726667798 is a wasteful number, since it uses less digits than its factorization.

726667798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363333901.

The product of its digits is 10668672, while the sum is 58.

The square root of 726667798 is about 26956.7764764261. The cubic root of 726667798 is about 899.0392207925.

The spelling of 726667798 in words is "seven hundred twenty-six million, six hundred sixty-seven thousand, seven hundred ninety-eight".