47030805 has 12 divisors (see below), whose sum is σ = 81520140. Its totient is φ = 25083072.

The previous prime is 47030801. The next prime is 47030821. The reversal of 47030805 is 50803074.

It can be written as a sum of positive squares in 2 ways, for example, as 11675889 + 35354916 = 3417^2 + 5946^2 .

It is not a de Polignac number, because 47030805 - 2² = 47030801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47030801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522520 + ... + 522609.

It is an arithmetic number, because the mean of its divisors is an integer number (6793345).

Almost surely, 2^47030805 is an apocalyptic number.

47030805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47030805 is a deficient number, since it is larger than the sum of its proper divisors (34489335).

47030805 is a wasteful number, since it uses less digits than its factorization.

47030805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045140 (or 1045137 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 47030805 is about 6857.9009179194. The cubic root of 47030805 is about 360.9614346865.

Adding to 47030805 its reverse (50803074), we get a palindrome (97833879).

The spelling of 47030805 in words is "forty-seven million, thirty thousand, eight hundred five".