4875661 has 4 divisors (see below), whose sum is σ = 5572192. Its totient is φ = 4179132.

The previous prime is 4875653. The next prime is 4875667. The reversal of 4875661 is 1665784.

4875661 = 320² + 321² + ... + 361².

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 4875661 - 2³ = 4875653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4875661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4875667) 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 3 ways as a sum of consecutive naturals, for example, 348255 + ... + 348268.

It is an arithmetic number, because the mean of its divisors is an integer number (1393048).

Almost surely, 2^4875661 is an apocalyptic number.

It is an amenable number.

4875661 is a deficient number, since it is larger than the sum of its proper divisors (696531).

4875661 is an equidigital number, since it uses as much as digits as its factorization.

4875661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696530.

The product of its digits is 40320, while the sum is 37.

The square root of 4875661 is about 2208.0898985322. The cubic root of 4875661 is about 169.5682353625.

The spelling of 4875661 in words is "four million, eight hundred seventy-five thousand, six hundred sixty-one".