4989549 has 4 divisors (see below), whose sum is σ = 6652736. Its totient is φ = 3326364.

The previous prime is 4989541. The next prime is 4989581. The reversal of 4989549 is 9459894.

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 not a de Polignac number, because 4989549 - 2³ = 4989541 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4989498 and 4989507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831589 + ... + 831594.

It is an arithmetic number, because the mean of its divisors is an integer number (1663184).

Almost surely, 2^4989549 is an apocalyptic number.

It is an amenable number.

4989549 is a deficient number, since it is larger than the sum of its proper divisors (1663187).

4989549 is a wasteful number, since it uses less digits than its factorization.

4989549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663186.

The product of its digits is 466560, while the sum is 48.

The square root of 4989549 is about 2233.7298404239. The cubic root of 4989549 is about 170.8783718384.

It can be divided in two parts, 49 and 89549, that added together give a palindrome (89598).

The spelling of 4989549 in words is "four million, nine hundred eighty-nine thousand, five hundred forty-nine".