724068749 has 2 divisors, whose sum is σ = 724068750. Its totient is φ = 724068748.

The previous prime is 724068713. The next prime is 724068757. The reversal of 724068749 is 947860427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444577225 + 279491524 = 21085^2 + 16718^2 .

It is a cyclic number.

It is not a de Polignac number, because 724068749 - 2⁸ = 724068493 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 (724068769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362034374 + 362034375.

It is an arithmetic number, because the mean of its divisors is an integer number (362034375).

Almost surely, 2^724068749 is an apocalyptic number.

It is an amenable number.

724068749 is a deficient number, since it is larger than the sum of its proper divisors (1).

724068749 is an equidigital number, since it uses as much as digits as its factorization.

724068749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 724068749 is about 26908.5255820530. The cubic root of 724068749 is about 897.9660856103.

The spelling of 724068749 in words is "seven hundred twenty-four million, sixty-eight thousand, seven hundred forty-nine".