6671401 has 8 divisors (see below), whose sum is σ = 7326144. Its totient is φ = 6024720.

The previous prime is 6671389. The next prime is 6671411. The reversal of 6671401 is 1041766.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6671401 - 2¹⁵ = 6638633 is a prime.

It is a Duffinian number.

6671401 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6671411) 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 7 ways as a sum of consecutive naturals, for example, 205 + ... + 3658.

It is an arithmetic number, because the mean of its divisors is an integer number (915768).

Almost surely, 2^6671401 is an apocalyptic number.

It is an amenable number.

6671401 is a deficient number, since it is larger than the sum of its proper divisors (654743).

6671401 is a wasteful number, since it uses less digits than its factorization.

6671401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 6671401 is about 2582.9055344708. The cubic root of 6671401 is about 188.2517470166.

The spelling of 6671401 in words is "six million, six hundred seventy-one thousand, four hundred one".