7648545 has 32 divisors (see below), whose sum is σ = 13178880. Its totient is φ = 3775680.

The previous prime is 7648523. The next prime is 7648549. The reversal of 7648545 is 5458467.

It is not a de Polignac number, because 7648545 - 2⁵ = 7648513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7648549) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 13110 + ... + 13680.

It is an arithmetic number, because the mean of its divisors is an integer number (411840).

Almost surely, 2^7648545 is an apocalyptic number.

It is an amenable number.

7648545 is a deficient number, since it is larger than the sum of its proper divisors (5530335).

7648545 is a wasteful number, since it uses less digits than its factorization.

7648545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645.

The product of its digits is 134400, while the sum is 39.

The square root of 7648545 is about 2765.6002964998. The cubic root of 7648545 is about 197.0272407725.

The spelling of 7648545 in words is "seven million, six hundred forty-eight thousand, five hundred forty-five".