4989387823 has 8 divisors (see below), whose sum is σ = 5795636000. Its totient is φ = 4206509280.

The previous prime is 4989387811. The next prime is 4989387827. The reversal of 4989387823 is 3287839894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4989387823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989387827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5841948 + ... + 5842801.

It is an arithmetic number, because the mean of its divisors is an integer number (724454500).

Almost surely, 2^4989387823 is an apocalyptic number.

4989387823 is a deficient number, since it is larger than the sum of its proper divisors (806248177).

4989387823 is a wasteful number, since it uses less digits than its factorization.

4989387823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11684817.

The product of its digits is 20901888, while the sum is 61.

The square root of 4989387823 is about 70635.5988365640. The cubic root of 4989387823 is about 1708.7653186182.

The spelling of 4989387823 in words is "four billion, nine hundred eighty-nine million, three hundred eighty-seven thousand, eight hundred twenty-three".