6401875 has 10 divisors (see below), whose sum is σ = 8000564. Its totient is φ = 5121000.

The previous prime is 6401869. The next prime is 6401887. The reversal of 6401875 is 5781046.

It is not a de Polignac number, because 6401875 - 2³ = 6401867 is a prime.

It is a Duffinian number.

6401875 is a lucky number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 4497 + ... + 5746.

Almost surely, 2^6401875 is an apocalyptic number.

6401875 is a deficient number, since it is larger than the sum of its proper divisors (1598689).

6401875 is an equidigital number, since it uses as much as digits as its factorization.

6401875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10263 (or 10248 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 6401875 is about 2530.1926804099. The cubic root of 6401875 is about 185.6816827806.

The spelling of 6401875 in words is "six million, four hundred one thousand, eight hundred seventy-five".