724465409 has 2 divisors, whose sum is σ = 724465410. Its totient is φ = 724465408.

The previous prime is 724465403. The next prime is 724465517. The reversal of 724465409 is 904564427.

724465409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 682254400 + 42211009 = 26120^2 + 6497^2 .

It is a cyclic number.

It is not a de Polignac number, because 724465409 - 2²⁸ = 456029953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (724465403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362232704 + 362232705.

It is an arithmetic number, because the mean of its divisors is an integer number (362232705).

Almost surely, 2^724465409 is an apocalyptic number.

It is an amenable number.

724465409 is a deficient number, since it is larger than the sum of its proper divisors (1).

724465409 is an equidigital number, since it uses as much as digits as its factorization.

724465409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 724465409 is about 26915.8950993646. The cubic root of 724465409 is about 898.1300305421.

The spelling of 724465409 in words is "seven hundred twenty-four million, four hundred sixty-five thousand, four hundred nine".