4988509 has 4 divisors (see below), whose sum is σ = 5073120. Its totient is φ = 4903900.

The previous prime is 4988453. The next prime is 4988513. The reversal of 4988509 is 9058894.

It is a happy number.

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 4988509 - 2⁷ = 4988381 is a prime.

It is a Duffinian number.

4988509 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4988569) 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, 42217 + ... + 42334.

It is an arithmetic number, because the mean of its divisors is an integer number (1268280).

Almost surely, 2^4988509 is an apocalyptic number.

It is an amenable number.

4988509 is a deficient number, since it is larger than the sum of its proper divisors (84611).

4988509 is an equidigital number, since it uses as much as digits as its factorization.

4988509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84610.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 4988509 is about 2233.4970338015. The cubic root of 4988509 is about 170.8664986307.

The spelling of 4988509 in words is "four million, nine hundred eighty-eight thousand, five hundred nine".