4645989 has 12 divisors (see below), whose sum is σ = 6754176. Its totient is φ = 3077352.

The previous prime is 4645987. The next prime is 4645999. The reversal of 4645989 is 9895464.

It is a happy number.

It is not a de Polignac number, because 4645989 - 2¹ = 4645987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117 + ... + 3050.

It is an arithmetic number, because the mean of its divisors is an integer number (562848).

Almost surely, 2^4645989 is an apocalyptic number.

It is an amenable number.

4645989 is a deficient number, since it is larger than the sum of its proper divisors (2108187).

4645989 is a wasteful number, since it uses less digits than its factorization.

4645989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336 (or 3333 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 4645989 is about 2155.4556362867. The cubic root of 4645989 is about 166.8627483325.

The spelling of 4645989 in words is "four million, six hundred forty-five thousand, nine hundred eighty-nine".