724295641 has 2 divisors, whose sum is σ = 724295642. Its totient is φ = 724295640.

The previous prime is 724295603. The next prime is 724295653. The reversal of 724295641 is 146592427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 594335641 + 129960000 = 24379^2 + 11400^2 .

It is an emirp because it is prime and its reverse (146592427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724295641 - 2¹⁵ = 724262873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 724295594 and 724295603.

It is not a weakly prime, because it can be changed into another prime (724295441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362147820 + 362147821.

It is an arithmetic number, because the mean of its divisors is an integer number (362147821).

Almost surely, 2^724295641 is an apocalyptic number.

It is an amenable number.

724295641 is a deficient number, since it is larger than the sum of its proper divisors (1).

724295641 is an equidigital number, since it uses as much as digits as its factorization.

724295641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 724295641 is about 26912.7412390488. The cubic root of 724295641 is about 898.0598704633.

The spelling of 724295641 in words is "seven hundred twenty-four million, two hundred ninety-five thousand, six hundred forty-one".