47581973 has 2 divisors, whose sum is σ = 47581974. Its totient is φ = 47581972.

The previous prime is 47581967. The next prime is 47581979. The reversal of 47581973 is 37918574.

It is a balanced prime because it is at equal distance from previous prime (47581967) and next prime (47581979).

It can be written as a sum of positive squares in only one way, i.e., 33616804 + 13965169 = 5798^2 + 3737^2 .

It is a cyclic number.

It is not a de Polignac number, because 47581973 - 2⁴ = 47581957 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 (47581979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23790986 + 23790987.

It is an arithmetic number, because the mean of its divisors is an integer number (23790987).

Almost surely, 2^47581973 is an apocalyptic number.

It is an amenable number.

47581973 is a deficient number, since it is larger than the sum of its proper divisors (1).

47581973 is an equidigital number, since it uses as much as digits as its factorization.

47581973 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 47581973 is about 6897.9687589899. The cubic root of 47581973 is about 362.3660334142.

The spelling of 47581973 in words is "forty-seven million, five hundred eighty-one thousand, nine hundred seventy-three".