617081 has 4 divisors (see below), whose sum is σ = 627600. Its totient is φ = 606564.

The previous prime is 617077. The next prime is 617087. The reversal of 617081 is 180716.

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 617081 - 2² = 617077 is a prime.

It is a super-2 number, since 2×617081² = 761577921122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (617087) 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 3 ways as a sum of consecutive naturals, for example, 5171 + ... + 5288.

It is an arithmetic number, because the mean of its divisors is an integer number (156900).

2⁶¹⁷⁰⁸¹ is an apocalyptic number.

It is an amenable number.

617081 is a deficient number, since it is larger than the sum of its proper divisors (10519).

617081 is a wasteful number, since it uses less digits than its factorization.

617081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10518.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 617081 is about 785.5450337186. The cubic root of 617081 is about 85.1361600870.

Adding to 617081 its reverse (180716), we get a palindrome (797797).

The spelling of 617081 in words is "six hundred seventeen thousand, eighty-one".