6427945 has 8 divisors (see below), whose sum is σ = 7729344. Its totient is φ = 5131824.

The previous prime is 6427931. The next prime is 6427951. The reversal of 6427945 is 5497246.

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 6427945 - 2⁹ = 6427433 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 4⁷ + 2 + 7⁸ + 9⁶ + 4⁸ + 5⁵ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2242 + ... + 4228.

It is an arithmetic number, because the mean of its divisors is an integer number (966168).

Almost surely, 2^6427945 is an apocalyptic number.

It is an amenable number.

6427945 is a deficient number, since it is larger than the sum of its proper divisors (1301399).

6427945 is a wasteful number, since it uses less digits than its factorization.

6427945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639.

The product of its digits is 60480, while the sum is 37.

The square root of 6427945 is about 2535.3392277958. The cubic root of 6427945 is about 185.9333884880.

The spelling of 6427945 in words is "six million, four hundred twenty-seven thousand, nine hundred forty-five".