4666889 has 2 divisors, whose sum is σ = 4666890. Its totient is φ = 4666888.

The previous prime is 4666877. The next prime is 4666903. The reversal of 4666889 is 9886664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2890000 + 1776889 = 1700^2 + 1333^2 .

It is a cyclic number.

It is not a de Polignac number, because 4666889 - 2⁴ = 4666873 is a prime.

It is an Ulam number.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (4666819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2333444 + 2333445.

It is an arithmetic number, because the mean of its divisors is an integer number (2333445).

Almost surely, 2^4666889 is an apocalyptic number.

It is an amenable number.

4666889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4666889 is an equidigital number, since it uses as much as digits as its factorization.

4666889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 47.

The square root of 4666889 is about 2160.2983590236. The cubic root of 4666889 is about 167.1125849882.

It can be divided in two parts, 4666 and 889, that added together give a palindrome (5555).

The spelling of 4666889 in words is "four million, six hundred sixty-six thousand, eight hundred eighty-nine".