617472841 has 2 divisors, whose sum is σ = 617472842. Its totient is φ = 617472840.

The previous prime is 617472829. The next prime is 617472847. The reversal of 617472841 is 148274716.

It is a happy number.

617472841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 556960000 + 60512841 = 23600^2 + 7779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-617472841 is a prime.

It is a super-2 number, since 2×617472841² = 762545418745222562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 617472794 and 617472803.

It is not a weakly prime, because it can be changed into another prime (617472847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308736420 + 308736421.

It is an arithmetic number, because the mean of its divisors is an integer number (308736421).

Almost surely, 2^617472841 is an apocalyptic number.

It is an amenable number.

617472841 is a deficient number, since it is larger than the sum of its proper divisors (1).

617472841 is an equidigital number, since it uses as much as digits as its factorization.

617472841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 40.

The square root of 617472841 is about 24849.0008048613. Note that the first 3 decimals coincide. The cubic root of 617472841 is about 851.5417651137.

Subtracting from 617472841 its sum of digits (40), we obtain a square (617472801 = 24849²).

The spelling of 617472841 in words is "six hundred seventeen million, four hundred seventy-two thousand, eight hundred forty-one".