30228847 has 4 divisors (see below), whose sum is σ = 32976936. Its totient is φ = 27480760.

The previous prime is 30228833. The next prime is 30228851. The reversal of 30228847 is 74882203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74882203 = 11 ⋅6807473.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30228847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30228857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374028 + ... + 1374049.

It is an arithmetic number, because the mean of its divisors is an integer number (8244234).

Almost surely, 2^30228847 is an apocalyptic number.

30228847 is a deficient number, since it is larger than the sum of its proper divisors (2748089).

30228847 is a wasteful number, since it uses less digits than its factorization.

30228847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748088.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 30228847 is about 5498.0766637070. The cubic root of 30228847 is about 311.5113398890.

The spelling of 30228847 in words is "thirty million, two hundred twenty-eight thousand, eight hundred forty-seven".