4888981 has 2 divisors, whose sum is σ = 4888982. Its totient is φ = 4888980.

The previous prime is 4888973. The next prime is 4888997. The reversal of 4888981 is 1898884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3348900 + 1540081 = 1830^2 + 1241^2 .

It is a cyclic number.

It is not a de Polignac number, because 4888981 - 2³ = 4888973 is a prime.

It is a super-2 number, since 2×4888981² = 47804270436722, which contains 22 as substring.

It is an Ulam number.

4888981 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4888901) 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, 2444490 + 2444491.

It is an arithmetic number, because the mean of its divisors is an integer number (2444491).

Almost surely, 2^4888981 is an apocalyptic number.

It is an amenable number.

4888981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4888981 is an equidigital number, since it uses as much as digits as its factorization.

4888981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 46.

The square root of 4888981 is about 2211.1040228809. The cubic root of 4888981 is about 169.7225115507.

The spelling of 4888981 in words is "four million, eight hundred eighty-eight thousand, nine hundred eighty-one".