3117655 has 4 divisors (see below), whose sum is σ = 3741192. Its totient is φ = 2494120.

The previous prime is 3117637. The next prime is 3117661. The reversal of 3117655 is 5567113.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3117655 - 2⁵ = 3117623 is a prime.

It is a Duffinian number.

3117655 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311761 + ... + 311770.

It is an arithmetic number, because the mean of its divisors is an integer number (935298).

Almost surely, 2^3117655 is an apocalyptic number.

3117655 is a deficient number, since it is larger than the sum of its proper divisors (623537).

3117655 is an equidigital number, since it uses as much as digits as its factorization.

3117655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623536.

The product of its digits is 3150, while the sum is 28.

The square root of 3117655 is about 1765.6882510794. The cubic root of 3117655 is about 146.0862535307.

The spelling of 3117655 in words is "three million, one hundred seventeen thousand, six hundred fifty-five".