4821609 has 8 divisors (see below), whose sum is σ = 6923392. Its totient is φ = 2967120.

The previous prime is 4821563. The next prime is 4821613. The reversal of 4821609 is 9061284.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4821609 - 2⁹ = 4821097 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4821629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61777 + ... + 61854.

It is an arithmetic number, because the mean of its divisors is an integer number (865424).

Almost surely, 2^4821609 is an apocalyptic number.

It is an amenable number.

4821609 is a deficient number, since it is larger than the sum of its proper divisors (2101783).

4821609 is a wasteful number, since it uses less digits than its factorization.

4821609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123647.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 4821609 is about 2195.8162491429. The cubic root of 4821609 is about 168.9392893752.

The spelling of 4821609 in words is "four million, eight hundred twenty-one thousand, six hundred nine".