441611653 has 4 divisors (see below), whose sum is σ = 504699040. Its totient is φ = 378524268.

The previous prime is 441611629. The next prime is 441611689. The reversal of 441611653 is 356116144.

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 441611653 - 2⁹ = 441611141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441611153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31543683 + ... + 31543696.

It is an arithmetic number, because the mean of its divisors is an integer number (126174760).

Almost surely, 2^441611653 is an apocalyptic number.

It is an amenable number.

441611653 is a deficient number, since it is larger than the sum of its proper divisors (63087387).

441611653 is an equidigital number, since it uses as much as digits as its factorization.

441611653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63087386.

The product of its digits is 8640, while the sum is 31.

The square root of 441611653 is about 21014.5581205030. The cubic root of 441611653 is about 761.5180030139.

Adding to 441611653 its reverse (356116144), we get a palindrome (797727797).

The spelling of 441611653 in words is "four hundred forty-one million, six hundred eleven thousand, six hundred fifty-three".