4024661 has 4 divisors (see below), whose sum is σ = 4100652. Its totient is φ = 3948672.

The previous prime is 4024589. The next prime is 4024667. The reversal of 4024661 is 1664204.

It is a happy number.

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 2856100 + 1168561 = 1690^2 + 1081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4024661 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4024667) 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, 37916 + ... + 38021.

It is an arithmetic number, because the mean of its divisors is an integer number (1025163).

Almost surely, 2^4024661 is an apocalyptic number.

It is an amenable number.

4024661 is a deficient number, since it is larger than the sum of its proper divisors (75991).

4024661 is an equidigital number, since it uses as much as digits as its factorization.

4024661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75990.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 4024661 is about 2006.1557766036. The cubic root of 4024661 is about 159.0656612104.

Adding to 4024661 its reverse (1664204), we get a palindrome (5688865).

The spelling of 4024661 in words is "four million, twenty-four thousand, six hundred sixty-one".