724303427 has 4 divisors (see below), whose sum is σ = 762424680. Its totient is φ = 686182176.

The previous prime is 724303397. The next prime is 724303439.

724303427 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 724303427 - 2²² = 720109123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 724303393 and 724303402.

It is not an unprimeable number, because it can be changed into a prime (724303477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19060598 + ... + 19060635.

It is an arithmetic number, because the mean of its divisors is an integer number (190606170).

Almost surely, 2^724303427 is an apocalyptic number.

724303427 is a deficient number, since it is larger than the sum of its proper divisors (38121253).

724303427 is a wasteful number, since it uses less digits than its factorization.

724303427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38121252.

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 724303427 is about 26912.8858913347. The cubic root of 724303427 is about 898.0630884260.

It can be divided in two parts, 72430 and 3427, that added together give a palindrome (75857).

The spelling of 724303427 in words is "seven hundred twenty-four million, three hundred three thousand, four hundred twenty-seven".