30419729 has 2 divisors, whose sum is σ = 30419730. Its totient is φ = 30419728.

The previous prime is 30419723. The next prime is 30419747. The reversal of 30419729 is 92791403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20976400 + 9443329 = 4580^2 + 3073^2 .

It is an emirp because it is prime and its reverse (92791403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30419729 - 2¹² = 30415633 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30419723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15209864 + 15209865.

It is an arithmetic number, because the mean of its divisors is an integer number (15209865).

Almost surely, 2^30419729 is an apocalyptic number.

It is an amenable number.

30419729 is a deficient number, since it is larger than the sum of its proper divisors (1).

30419729 is an equidigital number, since it uses as much as digits as its factorization.

30419729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 30419729 is about 5515.4083257724. The cubic root of 30419729 is about 312.1656507214.

The spelling of 30419729 in words is "thirty million, four hundred nineteen thousand, seven hundred twenty-nine".