4988638 has 8 divisors (see below), whose sum is σ = 7741080. Its totient is φ = 2408280.

The previous prime is 4988591. The next prime is 4988651. The reversal of 4988638 is 8368894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42948 + ... + 43063.

It is an arithmetic number, because the mean of its divisors is an integer number (967635).

Almost surely, 2^4988638 is an apocalyptic number.

4988638 is a deficient number, since it is larger than the sum of its proper divisors (2752442).

4988638 is a wasteful number, since it uses less digits than its factorization.

4988638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86042.

The product of its digits is 331776, while the sum is 46.

The square root of 4988638 is about 2233.5259120950. The cubic root of 4988638 is about 170.8679714547.

The spelling of 4988638 in words is "four million, nine hundred eighty-eight thousand, six hundred thirty-eight".