4988521 has 4 divisors (see below), whose sum is σ = 4997200. Its totient is φ = 4979844.

The previous prime is 4988513. The next prime is 4988527. The reversal of 4988521 is 1258894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4988521 - 2³ = 4988513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4988527) 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 in 3 ways as a sum of consecutive naturals, for example, 3411 + ... + 4648.

It is an arithmetic number, because the mean of its divisors is an integer number (1249300).

Almost surely, 2^4988521 is an apocalyptic number.

It is an amenable number.

4988521 is a deficient number, since it is larger than the sum of its proper divisors (8679).

4988521 is an equidigital number, since it uses as much as digits as its factorization.

4988521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8678.

The product of its digits is 23040, while the sum is 37.

The square root of 4988521 is about 2233.4997201701. The cubic root of 4988521 is about 170.8666356386.

The spelling of 4988521 in words is "four million, nine hundred eighty-eight thousand, five hundred twenty-one".