4949881 has 2 divisors, whose sum is σ = 4949882. Its totient is φ = 4949880.

The previous prime is 4949843. The next prime is 4949891. The reversal of 4949881 is 1889494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4372281 + 577600 = 2091^2 + 760^2 .

It is a cyclic number.

It is not a de Polignac number, because 4949881 - 2⁷ = 4949753 is a prime.

It is a super-2 number, since 2×4949881² = 49002643828322, which contains 22 as substring.

4949881 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4949891) 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, 2474940 + 2474941.

It is an arithmetic number, because the mean of its divisors is an integer number (2474941).

Almost surely, 2^4949881 is an apocalyptic number.

It is an amenable number.

4949881 is a deficient number, since it is larger than the sum of its proper divisors (1).

4949881 is an equidigital number, since it uses as much as digits as its factorization.

4949881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 43.

The square root of 4949881 is about 2224.8328027068. The cubic root of 4949881 is about 170.4243263741.

The spelling of 4949881 in words is "four million, nine hundred forty-nine thousand, eight hundred eighty-one".