724357901 has 2 divisors, whose sum is σ = 724357902. Its totient is φ = 724357900.

The previous prime is 724357889. The next prime is 724357939. The reversal of 724357901 is 109753427.

724357901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (724357939) can be obtained adding 724357901 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 506205001 + 218152900 = 22499^2 + 14770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-724357901 is a prime.

It is a super-2 number, since 2×724357901² = 1049388737482251602, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724357951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362178950 + 362178951.

It is an arithmetic number, because the mean of its divisors is an integer number (362178951).

Almost surely, 2^724357901 is an apocalyptic number.

It is an amenable number.

724357901 is a deficient number, since it is larger than the sum of its proper divisors (1).

724357901 is an equidigital number, since it uses as much as digits as its factorization.

724357901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 724357901 is about 26913.8979153894. The cubic root of 724357901 is about 898.0856019475.

The spelling of 724357901 in words is "seven hundred twenty-four million, three hundred fifty-seven thousand, nine hundred one".