6404275 has 12 divisors (see below), whose sum is σ = 8015112. Its totient is φ = 5075840.

The previous prime is 6404269. The next prime is 6404297. The reversal of 6404275 is 5724046.

It is not a de Polignac number, because 6404275 - 2⁵ = 6404243 is a prime.

It is a Duffinian number.

6404275 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1692 + ... + 3958.

It is an arithmetic number, because the mean of its divisors is an integer number (667926).

Almost surely, 2^6404275 is an apocalyptic number.

6404275 is a deficient number, since it is larger than the sum of its proper divisors (1610837).

6404275 is a wasteful number, since it uses less digits than its factorization.

6404275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390 (or 2385 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 6404275 is about 2530.6669081489. Note that the first 3 decimals coincide. The cubic root of 6404275 is about 185.7048832941.

The spelling of 6404275 in words is "six million, four hundred four thousand, two hundred seventy-five".