613287841 has 2 divisors, whose sum is σ = 613287842. Its totient is φ = 613287840.

The previous prime is 613287797. The next prime is 613287889. The reversal of 613287841 is 148782316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589081441 + 24206400 = 24271^2 + 4920^2 .

It is a cyclic number.

It is not a de Polignac number, because 613287841 - 2⁹ = 613287329 is a prime.

It is a super-2 number, since 2×613287841² = 752243951836882562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 613287794 and 613287803.

It is not a weakly prime, because it can be changed into another prime (613287541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306643920 + 306643921.

It is an arithmetic number, because the mean of its divisors is an integer number (306643921).

Almost surely, 2^613287841 is an apocalyptic number.

It is an amenable number.

613287841 is a deficient number, since it is larger than the sum of its proper divisors (1).

613287841 is an equidigital number, since it uses as much as digits as its factorization.

613287841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 40.

The square root of 613287841 is about 24764.6490183083. The cubic root of 613287841 is about 849.6135918404.

It can be divided in two parts, 61328 and 7841, that added together give a square (69169 = 263²).

The spelling of 613287841 in words is "six hundred thirteen million, two hundred eighty-seven thousand, eight hundred forty-one".