47004913 has 2 divisors, whose sum is σ = 47004914. Its totient is φ = 47004912.

The previous prime is 47004907. The next prime is 47004929. The reversal of 47004913 is 31940074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46553329 + 451584 = 6823^2 + 672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47004913 is a prime.

It is a super-2 number, since 2×47004913² = 4418923692275138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47004973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23502456 + 23502457.

It is an arithmetic number, because the mean of its divisors is an integer number (23502457).

Almost surely, 2^47004913 is an apocalyptic number.

It is an amenable number.

47004913 is a deficient number, since it is larger than the sum of its proper divisors (1).

47004913 is an equidigital number, since it uses as much as digits as its factorization.

47004913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 47004913 is about 6856.0129083892. The cubic root of 47004913 is about 360.8951821591.

Adding to 47004913 its reverse (31940074), we get a palindrome (78944987).

The spelling of 47004913 in words is "forty-seven million, four thousand, nine hundred thirteen".