4989898 has 4 divisors (see below), whose sum is σ = 7484850. Its totient is φ = 2494948.

The previous prime is 4989863. The next prime is 4989917. The reversal of 4989898 is 8989894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8989894 = 2 ⋅4494947.

It can be written as a sum of positive squares in only one way, i.e., 4272489 + 717409 = 2067^2 + 847^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1247473 + ... + 1247476.

Almost surely, 2^4989898 is an apocalyptic number.

4989898 is a deficient number, since it is larger than the sum of its proper divisors (2494952).

4989898 is a wasteful number, since it uses less digits than its factorization.

4989898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494951.

The product of its digits is 1492992, while the sum is 55.

The square root of 4989898 is about 2233.8079595167. The cubic root of 4989898 is about 170.8823558432.

The spelling of 4989898 in words is "four million, nine hundred eighty-nine thousand, eight hundred ninety-eight".