4906661 has 2 divisors, whose sum is σ = 4906662. Its totient is φ = 4906660.

The previous prime is 4906651. The next prime is 4906663. The reversal of 4906661 is 1666094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4813636 + 93025 = 2194^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 4906661 - 2²² = 712357 is a prime.

It is a super-3 number, since 3×4906661³ (a number of 21 digits) contains 333 as substring.

Together with 4906663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4906663) 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, 2453330 + 2453331.

It is an arithmetic number, because the mean of its divisors is an integer number (2453331).

Almost surely, 2^4906661 is an apocalyptic number.

It is an amenable number.

4906661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4906661 is an equidigital number, since it uses as much as digits as its factorization.

4906661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 4906661 is about 2215.0984176781. The cubic root of 4906661 is about 169.9268543454.

The spelling of 4906661 in words is "four million, nine hundred six thousand, six hundred sixty-one".