617379841 has 8 divisors (see below), whose sum is σ = 675770984. Its totient is φ = 560545920.

The previous prime is 617379821. The next prime is 617379883. The reversal of 617379841 is 148973716.

It can be written as a sum of positive squares in 4 ways, for example, as 4322241 + 613057600 = 2079^2 + 24760^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 617379841 - 2¹¹ = 617377793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 617379791 and 617379800.

It is not an unprimeable number, because it can be changed into a prime (617379821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388476 + ... + 390061.

It is an arithmetic number, because the mean of its divisors is an integer number (84471373).

Almost surely, 2^617379841 is an apocalyptic number.

617379841 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

617379841 is a deficient number, since it is larger than the sum of its proper divisors (58391143).

617379841 is a wasteful number, since it uses less digits than its factorization.

617379841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778611.

The product of its digits is 254016, while the sum is 46.

The square root of 617379841 is about 24847.1294317875. The cubic root of 617379841 is about 851.4990116218.

The spelling of 617379841 in words is "six hundred seventeen million, three hundred seventy-nine thousand, eight hundred forty-one".