4904989 has 2 divisors, whose sum is σ = 4904990. Its totient is φ = 4904988.

The previous prime is 4904971. The next prime is 4905001. The reversal of 4904989 is 9894094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3833764 + 1071225 = 1958^2 + 1035^2 .

It is a cyclic number.

It is not a de Polignac number, because 4904989 - 2⁹ = 4904477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4904969) 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, 2452494 + 2452495.

It is an arithmetic number, because the mean of its divisors is an integer number (2452495).

Almost surely, 2^4904989 is an apocalyptic number.

It is an amenable number.

4904989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4904989 is an equidigital number, since it uses as much as digits as its factorization.

4904989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 4904989 is about 2214.7209756536. The cubic root of 4904989 is about 169.9075506561.

The spelling of 4904989 in words is "four million, nine hundred four thousand, nine hundred eighty-nine".