1946447873 has 2 divisors, whose sum is σ = 1946447874. Its totient is φ = 1946447872.

The previous prime is 1946447869. The next prime is 1946447917. The reversal of 1946447873 is 3787446491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1930987249 + 15460624 = 43943^2 + 3932^2 .

It is a cyclic number.

It is not a de Polignac number, because 1946447873 - 2² = 1946447869 is a prime.

It is not a weakly prime, because it can be changed into another prime (1946447813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973223936 + 973223937.

It is an arithmetic number, because the mean of its divisors is an integer number (973223937).

Almost surely, 2^1946447873 is an apocalyptic number.

It is an amenable number.

1946447873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1946447873 is an equidigital number, since it uses as much as digits as its factorization.

1946447873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 53.

The square root of 1946447873 is about 44118.5660805063. The cubic root of 1946447873 is about 1248.5739198951.

The spelling of 1946447873 in words is "one billion, nine hundred forty-six million, four hundred forty-seven thousand, eight hundred seventy-three".