722791047 has 16 divisors (see below), whose sum is σ = 1061746560. Its totient is φ = 433716000.

The previous prime is 722791037. The next prime is 722791073. The reversal of 722791047 is 740197227.

722791047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 722791047 - 2¹⁹ = 722266759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 722790996 and 722791014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722791037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105097 + ... + 111762.

It is an arithmetic number, because the mean of its divisors is an integer number (66359160).

Almost surely, 2^722791047 is an apocalyptic number.

722791047 is a deficient number, since it is larger than the sum of its proper divisors (338955513).

722791047 is a wasteful number, since it uses less digits than its factorization.

722791047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216974.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 722791047 is about 26884.7735158770. The cubic root of 722791047 is about 897.4375867193.

The spelling of 722791047 in words is "seven hundred twenty-two million, seven hundred ninety-one thousand, forty-seven".