4661819 has 2 divisors, whose sum is σ = 4661820. Its totient is φ = 4661818.

The previous prime is 4661807. The next prime is 4661849. The reversal of 4661819 is 9181664.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4661819 - 2¹⁶ = 4596283 is a prime.

It is a super-2 number, since 2×4661819² = 43465112777522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4661849) 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, 2330909 + 2330910.

It is an arithmetic number, because the mean of its divisors is an integer number (2330910).

Almost surely, 2^4661819 is an apocalyptic number.

4661819 is a deficient number, since it is larger than the sum of its proper divisors (1).

4661819 is an equidigital number, since it uses as much as digits as its factorization.

4661819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 4661819 is about 2159.1245911248. The cubic root of 4661819 is about 167.0520473148.

The spelling of 4661819 in words is "four million, six hundred sixty-one thousand, eight hundred nineteen".