4987123 has 4 divisors (see below), whose sum is σ = 5093280. Its totient is φ = 4880968.

The previous prime is 4987109. The next prime is 4987127. The reversal of 4987123 is 3217894.

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 4987123 - 2⁵ = 4987091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4987127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53008 + ... + 53101.

It is an arithmetic number, because the mean of its divisors is an integer number (1273320).

Almost surely, 2^4987123 is an apocalyptic number.

4987123 is a deficient number, since it is larger than the sum of its proper divisors (106157).

4987123 is a wasteful number, since it uses less digits than its factorization.

4987123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106156.

The product of its digits is 12096, while the sum is 34.

The square root of 4987123 is about 2233.1867364822. The cubic root of 4987123 is about 170.8506727327.

It can be divided in two parts, 49871 and 23, that added together give a palindrome (49894).

The spelling of 4987123 in words is "four million, nine hundred eighty-seven thousand, one hundred twenty-three".