6385945 has 8 divisors (see below), whose sum is σ = 7927560. Its totient is φ = 4932480.

The previous prime is 6385943. The next prime is 6385987. The reversal of 6385945 is 5495836.

It can be written as a sum of positive squares in 4 ways, for example, as 797449 + 5588496 = 893^2 + 2364^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6385945 - 2¹ = 6385943 is a prime.

6385945 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6385898 and 6385907.

It is not an unprimeable number, because it can be changed into a prime (6385943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21876 + ... + 22165.

It is an arithmetic number, because the mean of its divisors is an integer number (990945).

Almost surely, 2^6385945 is an apocalyptic number.

It is an amenable number.

6385945 is a deficient number, since it is larger than the sum of its proper divisors (1541615).

6385945 is a wasteful number, since it uses less digits than its factorization.

6385945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44075.

The product of its digits is 129600, while the sum is 40.

The square root of 6385945 is about 2527.0427380636. The cubic root of 6385945 is about 185.5275422084.

The spelling of 6385945 in words is "six million, three hundred eighty-five thousand, nine hundred forty-five".