724782901 has 2 divisors, whose sum is σ = 724782902. Its totient is φ = 724782900.

The previous prime is 724782889. The next prime is 724782959. The reversal of 724782901 is 109287427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 602702500 + 122080401 = 24550^2 + 11049^2 .

It is a cyclic number.

It is not a de Polignac number, because 724782901 - 2⁵ = 724782869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724788901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362391450 + 362391451.

It is an arithmetic number, because the mean of its divisors is an integer number (362391451).

Almost surely, 2^724782901 is an apocalyptic number.

It is an amenable number.

724782901 is a deficient number, since it is larger than the sum of its proper divisors (1).

724782901 is an equidigital number, since it uses as much as digits as its factorization.

724782901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 724782901 is about 26921.7923066054. The cubic root of 724782901 is about 898.2612111577.

The spelling of 724782901 in words is "seven hundred twenty-four million, seven hundred eighty-two thousand, nine hundred one".