6470845 has 4 divisors (see below), whose sum is σ = 7765020. Its totient is φ = 5176672.

The previous prime is 6470839. The next prime is 6470861. The reversal of 6470845 is 5480746.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2913849 + 3556996 = 1707^2 + 1886^2 .

It is a cyclic number.

It is not a de Polignac number, because 6470845 - 2³ = 6470837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6470845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647080 + ... + 647089.

It is an arithmetic number, because the mean of its divisors is an integer number (1941255).

Almost surely, 2^6470845 is an apocalyptic number.

It is an amenable number.

6470845 is a deficient number, since it is larger than the sum of its proper divisors (1294175).

6470845 is a wasteful number, since it uses less digits than its factorization.

6470845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294174.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 6470845 is about 2543.7855648619. The cubic root of 6470845 is about 186.3461104785.

Subtracting from 6470845 its reverse (5480746), we obtain a palindrome (990099).

The spelling of 6470845 in words is "six million, four hundred seventy thousand, eight hundred forty-five".