6672149 has 4 divisors (see below), whose sum is σ = 7278720. Its totient is φ = 6065580.

The previous prime is 6672137. The next prime is 6672157. The reversal of 6672149 is 9412766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6672149 - 2⁸ = 6671893 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6672179) 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, 303269 + ... + 303290.

It is an arithmetic number, because the mean of its divisors is an integer number (1819680).

Almost surely, 2^6672149 is an apocalyptic number.

It is an amenable number.

6672149 is a deficient number, since it is larger than the sum of its proper divisors (606571).

6672149 is a wasteful number, since it uses less digits than its factorization.

6672149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606570.

The product of its digits is 18144, while the sum is 35.

The square root of 6672149 is about 2583.0503285844. The cubic root of 6672149 is about 188.2587823727.

The spelling of 6672149 in words is "six million, six hundred seventy-two thousand, one hundred forty-nine".