613564441 has 4 divisors (see below), whose sum is σ = 701216512. Its totient is φ = 525912372.

The previous prime is 613564433. The next prime is 613564477. The reversal of 613564441 is 144465316.

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 613564441 - 2³ = 613564433 is a prime.

It is a super-2 number, since 2×613564441² = 752922646519284962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 613564397 and 613564406.

It is not an unprimeable number, because it can be changed into a prime (613564421) 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, 43826025 + ... + 43826038.

It is an arithmetic number, because the mean of its divisors is an integer number (175304128).

Almost surely, 2^613564441 is an apocalyptic number.

It is an amenable number.

613564441 is a deficient number, since it is larger than the sum of its proper divisors (87652071).

613564441 is an equidigital number, since it uses as much as digits as its factorization.

613564441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87652070.

The product of its digits is 34560, while the sum is 34.

The square root of 613564441 is about 24770.2329621665. The cubic root of 613564441 is about 849.7413012034.

The spelling of 613564441 in words is "six hundred thirteen million, five hundred sixty-four thousand, four hundred forty-one".