6672857 has 16 divisors (see below), whose sum is σ = 7565760. Its totient is φ = 5847552.

The previous prime is 6672817. The next prime is 6672863. The reversal of 6672857 is 7582766.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6672857 - 2¹⁸ = 6410713 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

Its product of digits (141120) is a multiple of the sum of its prime divisors (392).

It is not an unprimeable number, because it can be changed into a prime (6672817) 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 15 ways as a sum of consecutive naturals, for example, 23438 + ... + 23720.

It is an arithmetic number, because the mean of its divisors is an integer number (472860).

Almost surely, 2^6672857 is an apocalyptic number.

It is an amenable number.

6672857 is a deficient number, since it is larger than the sum of its proper divisors (892903).

6672857 is a wasteful number, since it uses less digits than its factorization.

6672857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its digits is 141120, while the sum is 41.

The square root of 6672857 is about 2583.1873722206. The cubic root of 6672857 is about 188.2654410221.

Subtracting 6672857 from its reverse (7582766), we obtain a palindrome (909909).

The spelling of 6672857 in words is "six million, six hundred seventy-two thousand, eight hundred fifty-seven".