6677649 has 24 divisors (see below), whose sum is σ = 10812672. Its totient is φ = 3935520.

The previous prime is 6677641. The next prime is 6677663. The reversal of 6677649 is 9467766.

It is not a de Polignac number, because 6677649 - 2³ = 6677641 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 6⁶ + 7 + 7⁶ + 6⁸ + 4⁶ + 9⁷ .

It is not an unprimeable number, because it can be changed into a prime (6677641) 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 23 ways as a sum of consecutive naturals, for example, 2752 + ... + 4574.

It is an arithmetic number, because the mean of its divisors is an integer number (450528).

Almost surely, 2^6677649 is an apocalyptic number.

It is an amenable number.

6677649 is a deficient number, since it is larger than the sum of its proper divisors (4135023).

6677649 is a wasteful number, since it uses less digits than its factorization.

6677649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877 (or 1874 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 6677649 is about 2584.1147420345. The cubic root of 6677649 is about 188.3104967916.

The spelling of 6677649 in words is "six million, six hundred seventy-seven thousand, six hundred forty-nine".