6671699 has 4 divisors (see below), whose sum is σ = 6722760. Its totient is φ = 6620640.

The previous prime is 6671683. The next prime is 6671713. The reversal of 6671699 is 9961766.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9961766 = 2 ⋅4980883.

It is a cyclic number.

It is not a de Polignac number, because 6671699 - 2⁴ = 6671683 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (6671669) by changing a digit.

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, 25334 + ... + 25595.

It is an arithmetic number, because the mean of its divisors is an integer number (1680690).

Almost surely, 2^6671699 is an apocalyptic number.

6671699 is a deficient number, since it is larger than the sum of its proper divisors (51061).

6671699 is a wasteful number, since it uses less digits than its factorization.

6671699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51060.

The product of its digits is 122472, while the sum is 44.

The square root of 6671699 is about 2582.9632207989. The cubic root of 6671699 is about 188.2545499354.

The spelling of 6671699 in words is "six million, six hundred seventy-one thousand, six hundred ninety-nine".