4164989 has 2 divisors, whose sum is σ = 4164990. Its totient is φ = 4164988.

The previous prime is 4164977. The next prime is 4165037. The reversal of 4164989 is 9894614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3880900 + 284089 = 1970^2 + 533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4164989 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4164289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2082494 + 2082495.

It is an arithmetic number, because the mean of its divisors is an integer number (2082495).

Almost surely, 2^4164989 is an apocalyptic number.

It is an amenable number.

4164989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4164989 is an equidigital number, since it uses as much as digits as its factorization.

4164989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 4164989 is about 2040.8304682163. The cubic root of 4164989 is about 160.8932976103.

It can be divided in two parts, 4 and 164989, that multiplied together give a palindrome (659956).

The spelling of 4164989 in words is "four million, one hundred sixty-four thousand, nine hundred eighty-nine".