4989679 has 4 divisors (see below), whose sum is σ = 4998384. Its totient is φ = 4980976.

The previous prime is 4989641. The next prime is 4989697. The reversal of 4989679 is 9769894.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4989679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989079) 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, 3427 + ... + 4660.

It is an arithmetic number, because the mean of its divisors is an integer number (1249596).

Almost surely, 2^4989679 is an apocalyptic number.

4989679 is a deficient number, since it is larger than the sum of its proper divisors (8705).

4989679 is an equidigital number, since it uses as much as digits as its factorization.

4989679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8704.

The product of its digits is 979776, while the sum is 52.

The square root of 4989679 is about 2233.7589395456. The cubic root of 4989679 is about 170.8798558734.

The spelling of 4989679 in words is "four million, nine hundred eighty-nine thousand, six hundred seventy-nine".