72608429 has 2 divisors, whose sum is σ = 72608430. Its totient is φ = 72608428.

The previous prime is 72608413. The next prime is 72608449. The reversal of 72608429 is 92480627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51696100 + 20912329 = 7190^2 + 4573^2 .

It is an emirp because it is prime and its reverse (92480627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72608429 - 2⁴ = 72608413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72608392 and 72608401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72608449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36304214 + 36304215.

It is an arithmetic number, because the mean of its divisors is an integer number (36304215).

Almost surely, 2^72608429 is an apocalyptic number.

It is an amenable number.

72608429 is a deficient number, since it is larger than the sum of its proper divisors (1).

72608429 is an equidigital number, since it uses as much as digits as its factorization.

72608429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 72608429 is about 8521.0579742189. The cubic root of 72608429 is about 417.1853155978.

It can be divided in two parts, 72608 and 429, that added together give a palindrome (73037).

The spelling of 72608429 in words is "seventy-two million, six hundred eight thousand, four hundred twenty-nine".