4621665 has 16 divisors (see below), whose sum is σ = 7517376. Its totient is φ = 2424000.

The previous prime is 4621649. The next prime is 4621679. The reversal of 4621665 is 5661264.

It is not a de Polignac number, because 4621665 - 2⁴ = 4621649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1611 + ... + 3440.

It is an arithmetic number, because the mean of its divisors is an integer number (469836).

Almost surely, 2^4621665 is an apocalyptic number.

It is an amenable number.

4621665 is a deficient number, since it is larger than the sum of its proper divisors (2895711).

4621665 is a wasteful number, since it uses less digits than its factorization.

4621665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120.

The product of its digits is 8640, while the sum is 30.

The square root of 4621665 is about 2149.8058051833. The cubic root of 4621665 is about 166.5710362505.

The spelling of 4621665 in words is "four million, six hundred twenty-one thousand, six hundred sixty-five".