613447441 has 2 divisors, whose sum is σ = 613447442. Its totient is φ = 613447440.

The previous prime is 613447391. The next prime is 613447459. The reversal of 613447441 is 144744316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419430400 + 194017041 = 20480^2 + 13929^2 .

It is a cyclic number.

It is not a de Polignac number, because 613447441 - 2¹³ = 613439249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 613447397 and 613447406.

It is not a weakly prime, because it can be changed into another prime (613477441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306723720 + 306723721.

It is an arithmetic number, because the mean of its divisors is an integer number (306723721).

Almost surely, 2^613447441 is an apocalyptic number.

It is an amenable number.

613447441 is a deficient number, since it is larger than the sum of its proper divisors (1).

613447441 is an equidigital number, since it uses as much as digits as its factorization.

613447441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 34.

The square root of 613447441 is about 24767.8711438832. The cubic root of 613447441 is about 849.6872856588.

The spelling of 613447441 in words is "six hundred thirteen million, four hundred forty-seven thousand, four hundred forty-one".