4890001 has 2 divisors, whose sum is σ = 4890002. Its totient is φ = 4890000.

The previous prime is 4889993. The next prime is 4890013. The reversal of 4890001 is 1000984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4558225 + 331776 = 2135^2 + 576^2 .

It is a cyclic number.

It is not a de Polignac number, because 4890001 - 2³ = 4889993 is a prime.

It is not a weakly prime, because it can be changed into another prime (4890091) 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, 2445000 + 2445001.

It is an arithmetic number, because the mean of its divisors is an integer number (2445001).

Almost surely, 2^4890001 is an apocalyptic number.

It is an amenable number.

4890001 is a deficient number, since it is larger than the sum of its proper divisors (1).

4890001 is an equidigital number, since it uses as much as digits as its factorization.

4890001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 4890001 is about 2211.3346648574. The cubic root of 4890001 is about 169.7343139368.

Adding to 4890001 its reverse (1000984), we get a palindrome (5890985).

The spelling of 4890001 in words is "four million, eight hundred ninety thousand, one".