4788889 has 4 divisors (see below), whose sum is σ = 5473024. Its totient is φ = 4104756.

The previous prime is 4788887. The next prime is 4788907. The reversal of 4788889 is 9888874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9888874 = 2 ⋅4944437.

It is a cyclic number.

It is not a de Polignac number, because 4788889 - 2¹ = 4788887 is a prime.

It is a Duffinian number.

4788889 is a lucky number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (4788881) 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, 342057 + ... + 342070.

It is an arithmetic number, because the mean of its divisors is an integer number (1368256).

Almost surely, 2^4788889 is an apocalyptic number.

It is an amenable number.

4788889 is a deficient number, since it is larger than the sum of its proper divisors (684135).

4788889 is an equidigital number, since it uses as much as digits as its factorization.

4788889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684134.

The product of its digits is 1032192, while the sum is 52.

The square root of 4788889 is about 2188.3530336762. The cubic root of 4788889 is about 168.5562744411.

The spelling of 4788889 in words is "four million, seven hundred eighty-eight thousand, eight hundred eighty-nine".