724901 has 2 divisors, whose sum is σ = 724902. Its totient is φ = 724900.

The previous prime is 724879. The next prime is 724903. The reversal of 724901 is 109427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722500 + 2401 = 850^2 + 49^2 .

It is a cyclic number.

It is not a de Polignac number, because 724901 - 2⁶ = 724837 is a prime.

Together with 724903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724903) 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, 362450 + 362451.

It is an arithmetic number, because the mean of its divisors is an integer number (362451).

2⁷²⁴⁹⁰¹ is an apocalyptic number.

It is an amenable number.

724901 is a deficient number, since it is larger than the sum of its proper divisors (1).

724901 is an equidigital number, since it uses as much as digits as its factorization.

724901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 724901 is about 851.4111815099. The cubic root of 724901 is about 89.8309997256.

The spelling of 724901 in words is "seven hundred twenty-four thousand, nine hundred one".