4688889 has 8 divisors (see below), whose sum is σ = 6619680. Its totient is φ = 2942016.

The previous prime is 4688867. The next prime is 4688897. The reversal of 4688889 is 9888864.

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

It is not a de Polignac number, because 4688889 - 2⁹ = 4688377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 91939 = 4688889 / (4 + 6 + 8 + 8 + 8 + 8 + 9).

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (4680889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45919 + ... + 46020.

It is an arithmetic number, because the mean of its divisors is an integer number (827460).

Almost surely, 2^4688889 is an apocalyptic number.

It is an amenable number.

4688889 is a deficient number, since it is larger than the sum of its proper divisors (1930791).

4688889 is a wasteful number, since it uses less digits than its factorization.

4688889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91959.

The product of its digits is 884736, while the sum is 51.

The square root of 4688889 is about 2165.3842615111. The cubic root of 4688889 is about 167.3747664190.

The spelling of 4688889 in words is "four million, six hundred eighty-eight thousand, eight hundred eighty-nine".