47513923 has 2 divisors, whose sum is σ = 47513924. Its totient is φ = 47513922.

The previous prime is 47513911. The next prime is 47513933. The reversal of 47513923 is 32931574.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47513923 is a prime.

It is not a weakly prime, because it can be changed into another prime (47513933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23756961 + 23756962.

It is an arithmetic number, because the mean of its divisors is an integer number (23756962).

Almost surely, 2^47513923 is an apocalyptic number.

47513923 is a deficient number, since it is larger than the sum of its proper divisors (1).

47513923 is an equidigital number, since it uses as much as digits as its factorization.

47513923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 47513923 is about 6893.0343826213. The cubic root of 47513923 is about 362.1932034407.

The spelling of 47513923 in words is "forty-seven million, five hundred thirteen thousand, nine hundred twenty-three".