4609665 has 12 divisors (see below), whose sum is σ = 7990164. Its totient is φ = 2458464.

The previous prime is 4609663. The next prime is 4609673. The reversal of 4609665 is 5669064.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3370896 + 1238769 = 1836^2 + 1113^2 .

It is not a de Polignac number, because 4609665 - 2¹ = 4609663 is a prime.

It is a super-2 number, since 2×4609665² = 42498022824450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4609663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51174 + ... + 51263.

It is an arithmetic number, because the mean of its divisors is an integer number (665847).

Almost surely, 2^4609665 is an apocalyptic number.

4609665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4609665 is a deficient number, since it is larger than the sum of its proper divisors (3380499).

4609665 is a wasteful number, since it uses less digits than its factorization.

4609665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102448 (or 102445 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 4609665 is about 2147.0130414136. The cubic root of 4609665 is about 166.4267459050.

The spelling of 4609665 in words is "four million, six hundred nine thousand, six hundred sixty-five".