724367549 has 2 divisors, whose sum is σ = 724367550. Its totient is φ = 724367548.

The previous prime is 724367519. The next prime is 724367557. The reversal of 724367549 is 945763427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 668222500 + 56145049 = 25850^2 + 7493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-724367549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724367509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362183774 + 362183775.

It is an arithmetic number, because the mean of its divisors is an integer number (362183775).

Almost surely, 2^724367549 is an apocalyptic number.

It is an amenable number.

724367549 is a deficient number, since it is larger than the sum of its proper divisors (1).

724367549 is an equidigital number, since it uses as much as digits as its factorization.

724367549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 47.

The square root of 724367549 is about 26914.0771530439. The cubic root of 724367549 is about 898.0895892450.

The spelling of 724367549 in words is "seven hundred twenty-four million, three hundred sixty-seven thousand, five hundred forty-nine".