3946073449 has 2 divisors, whose sum is σ = 3946073450. Its totient is φ = 3946073448.

The previous prime is 3946073447. The next prime is 3946073497. The reversal of 3946073449 is 9443706493.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3823196224 + 122877225 = 61832^2 + 11085^2 .

It is a cyclic number.

It is not a de Polignac number, because 3946073449 - 2¹ = 3946073447 is a prime.

Together with 3946073447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3946073441) 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, 1973036724 + 1973036725.

It is an arithmetic number, because the mean of its divisors is an integer number (1973036725).

Almost surely, 2^3946073449 is an apocalyptic number.

It is an amenable number.

3946073449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3946073449 is an equidigital number, since it uses as much as digits as its factorization.

3946073449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 49.

The square root of 3946073449 is about 62817.7797203944. The cubic root of 3946073449 is about 1580.2351635496.

The spelling of 3946073449 in words is "three billion, nine hundred forty-six million, seventy-three thousand, four hundred forty-nine".