724439029 has 2 divisors, whose sum is σ = 724439030. Its totient is φ = 724439028.

The previous prime is 724438999. The next prime is 724439047. The reversal of 724439029 is 920934427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439740900 + 284698129 = 20970^2 + 16873^2 .

It is a cyclic number.

It is not a de Polignac number, because 724439029 - 2⁵ = 724438997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 724438982 and 724439000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724439069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362219514 + 362219515.

It is an arithmetic number, because the mean of its divisors is an integer number (362219515).

Almost surely, 2^724439029 is an apocalyptic number.

It is an amenable number.

724439029 is a deficient number, since it is larger than the sum of its proper divisors (1).

724439029 is an equidigital number, since it uses as much as digits as its factorization.

724439029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 724439029 is about 26915.4050498966. The cubic root of 724439029 is about 898.1191291899.

The spelling of 724439029 in words is "seven hundred twenty-four million, four hundred thirty-nine thousand, twenty-nine".