30104989 has 2 divisors, whose sum is σ = 30104990. Its totient is φ = 30104988.

The previous prime is 30104933. The next prime is 30105059. The reversal of 30104989 is 98940103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28440889 + 1664100 = 5333^2 + 1290^2 .

It is an emirp because it is prime and its reverse (98940103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30104989 - 2¹⁷ = 29973917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30104089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15052494 + 15052495.

It is an arithmetic number, because the mean of its divisors is an integer number (15052495).

Almost surely, 2^30104989 is an apocalyptic number.

It is an amenable number.

30104989 is a deficient number, since it is larger than the sum of its proper divisors (1).

30104989 is an equidigital number, since it uses as much as digits as its factorization.

30104989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 30104989 is about 5486.8013450461. The cubic root of 30104989 is about 311.0853010571.

The spelling of 30104989 in words is "thirty million, one hundred four thousand, nine hundred eighty-nine".