617091 has 16 divisors (see below), whose sum is σ = 876960. Its totient is φ = 385280.

The previous prime is 617087. The next prime is 617107. The reversal of 617091 is 190716.

It is a cyclic number.

It is not a de Polignac number, because 617091 - 2² = 617087 is a prime.

617091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (617011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3481 + ... + 3653.

It is an arithmetic number, because the mean of its divisors is an integer number (54810).

2⁶¹⁷⁰⁹¹ is an apocalyptic number.

617091 is a deficient number, since it is larger than the sum of its proper divisors (259869).

617091 is a wasteful number, since it uses less digits than its factorization.

617091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 617091 is about 785.5513987003. The cubic root of 617091 is about 85.1366199710.

The spelling of 617091 in words is "six hundred seventeen thousand, ninety-one".