4979239 has 4 divisors (see below), whose sum is σ = 5053624. Its totient is φ = 4904856.

The previous prime is 4979209. The next prime is 4979263. The reversal of 4979239 is 9329794.

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

It is a cyclic number.

It is not a de Polignac number, because 4979239 - 2¹³ = 4971047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4979195 and 4979204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4979209) 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, 37092 + ... + 37225.

It is an arithmetic number, because the mean of its divisors is an integer number (1263406).

Almost surely, 2^4979239 is an apocalyptic number.

4979239 is a deficient number, since it is larger than the sum of its proper divisors (74385).

4979239 is an equidigital number, since it uses as much as digits as its factorization.

4979239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74384.

The product of its digits is 122472, while the sum is 43.

The square root of 4979239 is about 2231.4208478008. The cubic root of 4979239 is about 170.7605942692.

The spelling of 4979239 in words is "four million, nine hundred seventy-nine thousand, two hundred thirty-nine".