30049973 has 2 divisors, whose sum is σ = 30049974. Its totient is φ = 30049972.

The previous prime is 30049961. The next prime is 30049979. The reversal of 30049973 is 37994003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16337764 + 13712209 = 4042^2 + 3703^2 .

It is a cyclic number.

It is not a de Polignac number, because 30049973 - 2⁶ = 30049909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30049979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15024986 + 15024987.

It is an arithmetic number, because the mean of its divisors is an integer number (15024987).

Almost surely, 2^30049973 is an apocalyptic number.

It is an amenable number.

30049973 is a deficient number, since it is larger than the sum of its proper divisors (1).

30049973 is an equidigital number, since it uses as much as digits as its factorization.

30049973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 30049973 is about 5481.7855667656. The cubic root of 30049973 is about 310.8956856964.

The spelling of 30049973 in words is "thirty million, forty-nine thousand, nine hundred seventy-three".