724219 has 2 divisors, whose sum is σ = 724220. Its totient is φ = 724218.

The previous prime is 724211. The next prime is 724259. The reversal of 724219 is 912427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 724219 - 2³ = 724211 is a prime.

It is a super-2 number, since 2×724219² = 1048986319922, which contains 22 as substring.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 724193 and 724202.

It is not a weakly prime, because it can be changed into another prime (724211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362109 + 362110.

It is an arithmetic number, because the mean of its divisors is an integer number (362110).

2⁷²⁴²¹⁹ is an apocalyptic number.

724219 is a deficient number, since it is larger than the sum of its proper divisors (1).

724219 is an equidigital number, since it uses as much as digits as its factorization.

724219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 25.

The square root of 724219 is about 851.0105757275. The cubic root of 724219 is about 89.8028193419.

The spelling of 724219 in words is "seven hundred twenty-four thousand, two hundred nineteen".