47513789 has 2 divisors, whose sum is σ = 47513790. Its totient is φ = 47513788.

The previous prime is 47513783. The next prime is 47513849. The reversal of 47513789 is 98731574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45454564 + 2059225 = 6742^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 47513789 - 2⁴ = 47513773 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47513783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23756894 + 23756895.

It is an arithmetic number, because the mean of its divisors is an integer number (23756895).

Almost surely, 2^47513789 is an apocalyptic number.

It is an amenable number.

47513789 is a deficient number, since it is larger than the sum of its proper divisors (1).

47513789 is an equidigital number, since it uses as much as digits as its factorization.

47513789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 47513789 is about 6893.0246626572. The cubic root of 47513789 is about 362.1928629515.

The spelling of 47513789 in words is "forty-seven million, five hundred thirteen thousand, seven hundred eighty-nine".