946045649 has 2 divisors, whose sum is σ = 946045650. Its totient is φ = 946045648.

The previous prime is 946045621. The next prime is 946045651. The reversal of 946045649 is 946540649.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 644398225 + 301647424 = 25385^2 + 17368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-946045649 is a prime.

Together with 946045651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (946045249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473022824 + 473022825.

It is an arithmetic number, because the mean of its divisors is an integer number (473022825).

Almost surely, 2^946045649 is an apocalyptic number.

It is an amenable number.

946045649 is a deficient number, since it is larger than the sum of its proper divisors (1).

946045649 is an equidigital number, since it uses as much as digits as its factorization.

946045649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 47.

The square root of 946045649 is about 30757.8550780122. The cubic root of 946045649 is about 981.6817053773.

The spelling of 946045649 in words is "nine hundred forty-six million, forty-five thousand, six hundred forty-nine".