4989970439 has 4 divisors (see below), whose sum is σ = 5013619800. Its totient is φ = 4966321080.

The previous prime is 4989970429. The next prime is 4989970483. The reversal of 4989970439 is 9340799894.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9340799894 = 2 ⋅4670399947.

It is a cyclic number.

It is not a de Polignac number, because 4989970439 - 2¹⁶ = 4989904903 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 (4989970409) 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, 11824364 + ... + 11824785.

It is an arithmetic number, because the mean of its divisors is an integer number (1253404950).

Almost surely, 2^4989970439 is an apocalyptic number.

4989970439 is a deficient number, since it is larger than the sum of its proper divisors (23649361).

4989970439 is a wasteful number, since it uses less digits than its factorization.

4989970439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23649360.

The product of its (nonzero) digits is 17635968, while the sum is 62.

The square root of 4989970439 is about 70639.7228123101. The cubic root of 4989970439 is about 1708.8318274634.

The spelling of 4989970439 in words is "four billion, nine hundred eighty-nine million, nine hundred seventy thousand, four hundred thirty-nine".