4998689 has 2 divisors, whose sum is σ = 4998690. Its totient is φ = 4998688.

The previous prime is 4998683. The next prime is 4998713. The reversal of 4998689 is 9868994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4443664 + 555025 = 2108^2 + 745^2 .

It is a cyclic number.

It is not a de Polignac number, because 4998689 - 2⁴ = 4998673 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4998689.

It is not a weakly prime, because it can be changed into another prime (4998683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2499344 + 2499345.

It is an arithmetic number, because the mean of its divisors is an integer number (2499345).

Almost surely, 2^4998689 is an apocalyptic number.

It is an amenable number.

4998689 is a deficient number, since it is larger than the sum of its proper divisors (1).

4998689 is an equidigital number, since it uses as much as digits as its factorization.

4998689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 53.

The square root of 4998689 is about 2235.7748097695. The cubic root of 4998689 is about 170.9826481715.

The spelling of 4998689 in words is "four million, nine hundred ninety-eight thousand, six hundred eighty-nine".