722285247 has 16 divisors (see below), whose sum is σ = 1014629760. Its totient is φ = 455776992.

The previous prime is 722285231. The next prime is 722285269. The reversal of 722285247 is 742582227.

It is a happy number.

It is not a de Polignac number, because 722285247 - 2⁴ = 722285231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722286247) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 67828 + ... + 77750.

It is an arithmetic number, because the mean of its divisors is an integer number (63414360).

Almost surely, 2^722285247 is an apocalyptic number.

722285247 is a deficient number, since it is larger than the sum of its proper divisors (292344513).

722285247 is a wasteful number, since it uses less digits than its factorization.

722285247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11222.

The product of its digits is 125440, while the sum is 39.

The square root of 722285247 is about 26875.3650579857. The cubic root of 722285247 is about 897.2281993922.

The spelling of 722285247 in words is "seven hundred twenty-two million, two hundred eighty-five thousand, two hundred forty-seven".