722430847 has 2 divisors, whose sum is σ = 722430848. Its totient is φ = 722430846.

The previous prime is 722430829. The next prime is 722430853. The reversal of 722430847 is 748034227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722430847 - 2⁷ = 722430719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722430857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361215423 + 361215424.

It is an arithmetic number, because the mean of its divisors is an integer number (361215424).

Almost surely, 2^722430847 is an apocalyptic number.

722430847 is a deficient number, since it is larger than the sum of its proper divisors (1).

722430847 is an equidigital number, since it uses as much as digits as its factorization.

722430847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 722430847 is about 26878.0737219020. The cubic root of 722430847 is about 897.2884838156.

The spelling of 722430847 in words is "seven hundred twenty-two million, four hundred thirty thousand, eight hundred forty-seven".