722868019 has 2 divisors, whose sum is σ = 722868020. Its totient is φ = 722868018.

The previous prime is 722868011. The next prime is 722868023. The reversal of 722868019 is 910868227.

722868019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722868019 - 2³ = 722868011 is a prime.

It is a super-2 number, since 2×722868019² = 1045076345785968722, which contains 22 as substring.

It is equal to p_37374892 and since 722868019 and 37374892 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (722868011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361434009 + 361434010.

It is an arithmetic number, because the mean of its divisors is an integer number (361434010).

Almost surely, 2^722868019 is an apocalyptic number.

722868019 is a deficient number, since it is larger than the sum of its proper divisors (1).

722868019 is an equidigital number, since it uses as much as digits as its factorization.

722868019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 722868019 is about 26886.2049943833. The cubic root of 722868019 is about 897.4694424514.

The spelling of 722868019 in words is "seven hundred twenty-two million, eight hundred sixty-eight thousand, nineteen".