4990558 has 4 divisors (see below), whose sum is σ = 7485840. Its totient is φ = 2495278.

The previous prime is 4990547. The next prime is 4990567. The reversal of 4990558 is 8550994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8550994 = 2 ⋅4275497.

It is a super-3 number, since 3×4990558³ (a number of 21 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 4990558.

It is a congruent number.

It is an unprimeable number.

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, 1247638 + ... + 1247641.

It is an arithmetic number, because the mean of its divisors is an integer number (1871460).

Almost surely, 2^4990558 is an apocalyptic number.

4990558 is a deficient number, since it is larger than the sum of its proper divisors (2495282).

4990558 is a wasteful number, since it uses less digits than its factorization.

4990558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495281.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 4990558 is about 2233.9556844306. The cubic root of 4990558 is about 170.8898895565.

The spelling of 4990558 in words is "four million, nine hundred ninety thousand, five hundred fifty-eight".