4945961 has 2 divisors, whose sum is σ = 4945962. Its totient is φ = 4945960.

The previous prime is 4945939. The next prime is 4945973. The reversal of 4945961 is 1695494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4515625 + 430336 = 2125^2 + 656^2 .

It is a cyclic number.

It is not a de Polignac number, because 4945961 - 2¹⁸ = 4683817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4945981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2472980 + 2472981.

It is an arithmetic number, because the mean of its divisors is an integer number (2472981).

Almost surely, 2^4945961 is an apocalyptic number.

It is an amenable number.

4945961 is a deficient number, since it is larger than the sum of its proper divisors (1).

4945961 is an equidigital number, since it uses as much as digits as its factorization.

4945961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 4945961 is about 2223.9516631438. The cubic root of 4945961 is about 170.3793259797.

The spelling of 4945961 in words is "four million, nine hundred forty-five thousand, nine hundred sixty-one".