4664989 has 4 divisors (see below), whose sum is σ = 5331424. Its totient is φ = 3998556.

The previous prime is 4664977. The next prime is 4664993. The reversal of 4664989 is 9894664.

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.

It is a cyclic number.

It is not a de Polignac number, because 4664989 - 2¹³ = 4656797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4664909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333207 + ... + 333220.

It is an arithmetic number, because the mean of its divisors is an integer number (1332856).

Almost surely, 2^4664989 is an apocalyptic number.

It is an amenable number.

4664989 is a deficient number, since it is larger than the sum of its proper divisors (666435).

4664989 is an equidigital number, since it uses as much as digits as its factorization.

4664989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666434.

The product of its digits is 373248, while the sum is 46.

The square root of 4664989 is about 2159.8585601840. The cubic root of 4664989 is about 167.0899034252.

The spelling of 4664989 in words is "four million, six hundred sixty-four thousand, nine hundred eighty-nine".