6445475 has 12 divisors (see below), whose sum is σ = 8027760. Its totient is φ = 5133600.

The previous prime is 6445463. The next prime is 6445493. The reversal of 6445475 is 5745446.

It is not a de Polignac number, because 6445475 - 2⁴ = 6445459 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7361 + ... + 8189.

It is an arithmetic number, because the mean of its divisors is an integer number (668980).

Almost surely, 2^6445475 is an apocalyptic number.

6445475 is a deficient number, since it is larger than the sum of its proper divisors (1582285).

6445475 is a wasteful number, since it uses less digits than its factorization.

6445475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150 (or 1145 counting only the distinct ones).

The product of its digits is 67200, while the sum is 35.

The square root of 6445475 is about 2538.7940050347. The cubic root of 6445475 is about 186.1022581038.

The spelling of 6445475 in words is "six million, four hundred forty-five thousand, four hundred seventy-five".