30473847 has 8 divisors (see below), whose sum is σ = 45146480. Its totient is φ = 20315880.

The previous prime is 30473819. The next prime is 30473879. The reversal of 30473847 is 74837403.

It is not a de Polignac number, because 30473847 - 2¹⁵ = 30441079 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 (30473897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564304 + ... + 564357.

It is an arithmetic number, because the mean of its divisors is an integer number (5643310).

Almost surely, 2^30473847 is an apocalyptic number.

30473847 is a deficient number, since it is larger than the sum of its proper divisors (14672633).

30473847 is a wasteful number, since it uses less digits than its factorization.

30473847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128670 (or 1128664 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 30473847 is about 5520.3122194311. The cubic root of 30473847 is about 312.3506597367.

The spelling of 30473847 in words is "thirty million, four hundred seventy-three thousand, eight hundred forty-seven".