6394641 has 16 divisors (see below), whose sum is σ = 9393408. Its totient is φ = 3837200.

The previous prime is 6394637. The next prime is 6394643. The reversal of 6394641 is 1464936.

It is a cyclic number.

It is not a de Polignac number, because 6394641 - 2² = 6394637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (6394643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2626 + ... + 4436.

It is an arithmetic number, because the mean of its divisors is an integer number (587088).

Almost surely, 2^6394641 is an apocalyptic number.

It is an amenable number.

6394641 is a deficient number, since it is larger than the sum of its proper divisors (2998767).

6394641 is a wasteful number, since it uses less digits than its factorization.

6394641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932.

The product of its digits is 15552, while the sum is 33.

The square root of 6394641 is about 2528.7627409466. The cubic root of 6394641 is about 185.6117174683.

The spelling of 6394641 in words is "six million, three hundred ninety-four thousand, six hundred forty-one".