6626755 has 4 divisors (see below), whose sum is σ = 7952112. Its totient is φ = 5301400.

The previous prime is 6626747. The next prime is 6626779. The reversal of 6626755 is 5576266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5576266 = 2 ⋅2788133.

It is not a de Polignac number, because 6626755 - 2³ = 6626747 is a prime.

It is a Duffinian number.

6626755 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662671 + ... + 662680.

It is an arithmetic number, because the mean of its divisors is an integer number (1988028).

Almost surely, 2^6626755 is an apocalyptic number.

6626755 is a deficient number, since it is larger than the sum of its proper divisors (1325357).

6626755 is a wasteful number, since it uses less digits than its factorization.

6626755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325356.

The product of its digits is 75600, while the sum is 37.

The square root of 6626755 is about 2574.2484340094. The cubic root of 6626755 is about 187.8308706028.

It can be divided in two parts, 6626 and 755, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 6626755 in words is "six million, six hundred twenty-six thousand, seven hundred fifty-five".