4831661 has 4 divisors (see below), whose sum is σ = 4998300. Its totient is φ = 4665024.

The previous prime is 4831657. The next prime is 4831669. The reversal of 4831661 is 1661384.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 855625 + 3976036 = 925^2 + 1994^2 .

It is a cyclic number.

It is not a de Polignac number, because 4831661 - 2² = 4831657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 166609 = 4831661 / (4 + 8 + 3 + 1 + 6 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4831669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83276 + ... + 83333.

It is an arithmetic number, because the mean of its divisors is an integer number (1249575).

Almost surely, 2^4831661 is an apocalyptic number.

It is an amenable number.

4831661 is a deficient number, since it is larger than the sum of its proper divisors (166639).

4831661 is a wasteful number, since it uses less digits than its factorization.

4831661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166638.

The product of its digits is 3456, while the sum is 29.

The square root of 4831661 is about 2198.1039556854. The cubic root of 4831661 is about 169.0566083719.

The spelling of 4831661 in words is "four million, eight hundred thirty-one thousand, six hundred sixty-one".