724404427 has 8 divisors (see below), whose sum is σ = 749802240. Its totient is φ = 699034560.

The previous prime is 724404407. The next prime is 724404433.

724404427 is nontrivially palindromic in base 10.

724404427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 724404427 - 2¹⁹ = 723880139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 724404392 and 724404401.

It is not an unprimeable number, because it can be changed into a prime (724404407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55303 + ... + 67135.

It is an arithmetic number, because the mean of its divisors is an integer number (93725280).

Almost surely, 2^724404427 is an apocalyptic number.

724404427 is a deficient number, since it is larger than the sum of its proper divisors (25397813).

724404427 is a wasteful number, since it uses less digits than its factorization.

724404427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13973.

The product of its (nonzero) digits is 50176, while the sum is 34.

The square root of 724404427 is about 26914.7622504825. The cubic root of 724404427 is about 898.1048297519.

It can be divided in two parts, 72440 and 4427, that added together give a palindrome (76867).

The spelling of 724404427 in words is "seven hundred twenty-four million, four hundred four thousand, four hundred twenty-seven".