4987549 has 4 divisors (see below), whose sum is σ = 5700064. Its totient is φ = 4275036.

The previous prime is 4987531. The next prime is 4987561. The reversal of 4987549 is 9457894.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9457894 = 2 ⋅4728947.

It is a cyclic number.

It is not a de Polignac number, because 4987549 - 2²¹ = 2890397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4987499 and 4987508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4987589) 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, 356247 + ... + 356260.

It is an arithmetic number, because the mean of its divisors is an integer number (1425016).

Almost surely, 2^4987549 is an apocalyptic number.

It is an amenable number.

4987549 is a deficient number, since it is larger than the sum of its proper divisors (712515).

4987549 is an equidigital number, since it uses as much as digits as its factorization.

4987549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712514.

The product of its digits is 362880, while the sum is 46.

The square root of 4987549 is about 2233.2821138405. The cubic root of 4987549 is about 170.8555372818.

The spelling of 4987549 in words is "four million, nine hundred eighty-seven thousand, five hundred forty-nine".