6671378 has 16 divisors (see below), whose sum is σ = 12109824. Its totient is φ = 2690880.

The previous prime is 6671377. The next prime is 6671381. The reversal of 6671378 is 8731766.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6671377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13778 + ... + 14253.

It is an arithmetic number, because the mean of its divisors is an integer number (756864).

Almost surely, 2^6671378 is an apocalyptic number.

6671378 is a deficient number, since it is larger than the sum of its proper divisors (5438446).

6671378 is a wasteful number, since it uses less digits than its factorization.

6671378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28057.

The product of its digits is 42336, while the sum is 38.

The square root of 6671378 is about 2582.9010821168. The cubic root of 6671378 is about 188.2515306805.

The spelling of 6671378 in words is "six million, six hundred seventy-one thousand, three hundred seventy-eight".