47918573 has 2 divisors, whose sum is σ = 47918574. Its totient is φ = 47918572.

The previous prime is 47918567. The next prime is 47918599. The reversal of 47918573 is 37581974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47914084 + 4489 = 6922^2 + 67^2 .

It is a cyclic number.

It is not a de Polignac number, because 47918573 - 2⁴ = 47918557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47918503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23959286 + 23959287.

It is an arithmetic number, because the mean of its divisors is an integer number (23959287).

Almost surely, 2^47918573 is an apocalyptic number.

It is an amenable number.

47918573 is a deficient number, since it is larger than the sum of its proper divisors (1).

47918573 is an equidigital number, since it uses as much as digits as its factorization.

47918573 is an odious number, because the sum of its binary digits is odd.

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

The square root of 47918573 is about 6922.3242484010. The cubic root of 47918573 is about 363.2184985314.

The spelling of 47918573 in words is "forty-seven million, nine hundred eighteen thousand, five hundred seventy-three".