613424441 has 4 divisors (see below), whose sum is σ = 701056512. Its totient is φ = 525792372.

The previous prime is 613424437. The next prime is 613424477. The reversal of 613424441 is 144424316.

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 not a de Polignac number, because 613424441 - 2² = 613424437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613424041) 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, 43816025 + ... + 43816038.

It is an arithmetic number, because the mean of its divisors is an integer number (175264128).

Almost surely, 2^613424441 is an apocalyptic number.

It is an amenable number.

613424441 is a deficient number, since it is larger than the sum of its proper divisors (87632071).

613424441 is an equidigital number, since it uses as much as digits as its factorization.

613424441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87632070.

The product of its digits is 9216, while the sum is 29.

The square root of 613424441 is about 24767.4068283298. The cubic root of 613424441 is about 849.6766664106.

Adding to 613424441 its reverse (144424316), we get a palindrome (757848757).

The spelling of 613424441 in words is "six hundred thirteen million, four hundred twenty-four thousand, four hundred forty-one".