6562945 has 8 divisors (see below), whose sum is σ = 7900200. Its totient is φ = 5233920.

The previous prime is 6562943. The next prime is 6562973. The reversal of 6562945 is 5492656.

It can be written as a sum of positive squares in 4 ways, for example, as 1073296 + 5489649 = 1036^2 + 2343^2 .

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

It is not a de Polignac number, because 6562945 - 2¹ = 6562943 is a prime.

6562945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6562943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136 + ... + 3625.

It is an arithmetic number, because the mean of its divisors is an integer number (987525).

Almost surely, 2^6562945 is an apocalyptic number.

It is an amenable number.

6562945 is a deficient number, since it is larger than the sum of its proper divisors (1337255).

6562945 is a wasteful number, since it uses less digits than its factorization.

6562945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115.

The product of its digits is 64800, while the sum is 37.

The square root of 6562945 is about 2561.8245451240. The cubic root of 6562945 is about 187.2260413921.

The spelling of 6562945 in words is "six million, five hundred sixty-two thousand, nine hundred forty-five".