47805013 has 2 divisors, whose sum is σ = 47805014. Its totient is φ = 47805012.

The previous prime is 47804983. The next prime is 47805031. The reversal of 47805013 is 31050874.

Together with next prime (47805031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29844369 + 17960644 = 5463^2 + 4238^2 .

It is a cyclic number.

It is not a de Polignac number, because 47805013 - 2⁹ = 47804501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47805113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23902506 + 23902507.

It is an arithmetic number, because the mean of its divisors is an integer number (23902507).

Almost surely, 2^47805013 is an apocalyptic number.

It is an amenable number.

47805013 is a deficient number, since it is larger than the sum of its proper divisors (1).

47805013 is an equidigital number, since it uses as much as digits as its factorization.

47805013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 47805013 is about 6914.1169356614. The cubic root of 47805013 is about 362.9313466940.

Adding to 47805013 its reverse (31050874), we get a palindrome (78855887).

The spelling of 47805013 in words is "forty-seven million, eight hundred five thousand, thirteen".