30790873 has 2 divisors, whose sum is σ = 30790874. Its totient is φ = 30790872.

The previous prime is 30790867. The next prime is 30790891. The reversal of 30790873 is 37809703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18344089 + 12446784 = 4283^2 + 3528^2 .

It is an emirp because it is prime and its reverse (37809703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30790873 - 2⁵ = 30790841 is a prime.

It is not a weakly prime, because it can be changed into another prime (30790853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15395436 + 15395437.

It is an arithmetic number, because the mean of its divisors is an integer number (15395437).

Almost surely, 2^30790873 is an apocalyptic number.

It is an amenable number.

30790873 is a deficient number, since it is larger than the sum of its proper divisors (1).

30790873 is an equidigital number, since it uses as much as digits as its factorization.

30790873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 30790873 is about 5548.9524236562. The cubic root of 30790873 is about 313.4300756303.

The spelling of 30790873 in words is "thirty million, seven hundred ninety thousand, eight hundred seventy-three".