4819961 has 2 divisors, whose sum is σ = 4819962. Its totient is φ = 4819960.

The previous prime is 4819943. The next prime is 4819963. The reversal of 4819961 is 1699184.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4818025 + 1936 = 2195^2 + 44^2 .

It is a cyclic number.

It is not a de Polignac number, because 4819961 - 2²² = 625657 is a prime.

It is a Sophie Germain prime.

Together with 4819963, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4819963) 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, 2409980 + 2409981.

It is an arithmetic number, because the mean of its divisors is an integer number (2409981).

Almost surely, 2^4819961 is an apocalyptic number.

It is an amenable number.

4819961 is a deficient number, since it is larger than the sum of its proper divisors (1).

4819961 is an equidigital number, since it uses as much as digits as its factorization.

4819961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 38.

The square root of 4819961 is about 2195.4409579854. The cubic root of 4819961 is about 168.9200396686.

The spelling of 4819961 in words is "four million, eight hundred nineteen thousand, nine hundred sixty-one".