30098947 has 2 divisors, whose sum is σ = 30098948. Its totient is φ = 30098946.

The previous prime is 30098917. The next prime is 30098951. The reversal of 30098947 is 74989003.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30098947 is a prime.

It is a super-2 number, since 2×30098947² = 1811893221017618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30098917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15049473 + 15049474.

It is an arithmetic number, because the mean of its divisors is an integer number (15049474).

Almost surely, 2^30098947 is an apocalyptic number.

30098947 is a deficient number, since it is larger than the sum of its proper divisors (1).

30098947 is an equidigital number, since it uses as much as digits as its factorization.

30098947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 30098947 is about 5486.2507233994. The cubic root of 30098947 is about 311.0644883036.

The spelling of 30098947 in words is "thirty million, ninety-eight thousand, nine hundred forty-seven".