724066219 has 2 divisors, whose sum is σ = 724066220. Its totient is φ = 724066218.

The previous prime is 724066199. The next prime is 724066241. The reversal of 724066219 is 912660427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 724066219 - 2²¹ = 721969067 is a prime.

It is a super-2 number, since 2×724066219² = 1048543778993911922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (724066249) 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 as a sum of consecutive naturals, namely, 362033109 + 362033110.

It is an arithmetic number, because the mean of its divisors is an integer number (362033110).

Almost surely, 2^724066219 is an apocalyptic number.

724066219 is a deficient number, since it is larger than the sum of its proper divisors (1).

724066219 is an equidigital number, since it uses as much as digits as its factorization.

724066219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 724066219 is about 26908.4785708891. The cubic root of 724066219 is about 897.9650397350.

It can be divided in two parts, 7240662 and 19, that multiplied together give a triangular number (137572578 = T₁₆₅₈₇).

The spelling of 724066219 in words is "seven hundred twenty-four million, sixty-six thousand, two hundred nineteen".