4989739 has 4 divisors (see below), whose sum is σ = 5071600. Its totient is φ = 4907880.

The previous prime is 4989713. The next prime is 4989757. The reversal of 4989739 is 9379894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9379894 = 2 ⋅4689947.

It is a cyclic number.

It is not a de Polignac number, because 4989739 - 2⁵ = 4989707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4989692 and 4989701.

It is not an unprimeable number, because it can be changed into a prime (4989779) 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, 40839 + ... + 40960.

It is an arithmetic number, because the mean of its divisors is an integer number (1267900).

Almost surely, 2^4989739 is an apocalyptic number.

4989739 is a deficient number, since it is larger than the sum of its proper divisors (81861).

4989739 is an equidigital number, since it uses as much as digits as its factorization.

4989739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81860.

The product of its digits is 489888, while the sum is 49.

The square root of 4989739 is about 2233.7723697817. The cubic root of 4989739 is about 170.8805408039.

The spelling of 4989739 in words is "four million, nine hundred eighty-nine thousand, seven hundred thirty-nine".