7656545 has 32 divisors (see below), whose sum is σ = 10795680. Its totient is φ = 5191680.

The previous prime is 7656533. The next prime is 7656577. The reversal of 7656545 is 5456567.

7656545 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 16 ways, for example, as 7656289 + 256 = 2767^2 + 16^2 .

It is not a de Polignac number, because 7656545 - 2⁴ = 7656529 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 7656499 and 7656508.

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 31 ways as a sum of consecutive naturals, for example, 186725 + ... + 186765.

It is an arithmetic number, because the mean of its divisors is an integer number (337365).

Almost surely, 2^7656545 is an apocalyptic number.

It is an amenable number.

7656545 is a deficient number, since it is larger than the sum of its proper divisors (3139135).

7656545 is a wasteful number, since it uses less digits than its factorization.

7656545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 76 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The square root of 7656545 is about 2767.0462591001. The cubic root of 7656545 is about 197.0959104213.

The spelling of 7656545 in words is "seven million, six hundred fifty-six thousand, five hundred forty-five".