724437001 has 2 divisors, whose sum is σ = 724437002. Its totient is φ = 724437000.

The previous prime is 724436989. The next prime is 724437029. The reversal of 724437001 is 100734427.

It is an a-pointer prime, because the next prime (724437029) can be obtained adding 724437001 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 646379776 + 78057225 = 25424^2 + 8835^2 .

It is an emirp because it is prime and its reverse (100734427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724437001 - 2¹⁷ = 724305929 is a prime.

It is not a weakly prime, because it can be changed into another prime (724437071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362218500 + 362218501.

It is an arithmetic number, because the mean of its divisors is an integer number (362218501).

Almost surely, 2^724437001 is an apocalyptic number.

It is an amenable number.

724437001 is a deficient number, since it is larger than the sum of its proper divisors (1).

724437001 is an equidigital number, since it uses as much as digits as its factorization.

724437001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 724437001 is about 26915.3673762778. The cubic root of 724437001 is about 898.1182911220.

The spelling of 724437001 in words is "seven hundred twenty-four million, four hundred thirty-seven thousand, one".