7664545 has 8 divisors (see below), whose sum is σ = 10511424. Its totient is φ = 5255664.

The previous prime is 7664537. The next prime is 7664549. The reversal of 7664545 is 5454667.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7664545 - 2³ = 7664537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7664549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109459 + ... + 109528.

It is an arithmetic number, because the mean of its divisors is an integer number (1313928).

Almost surely, 2^7664545 is an apocalyptic number.

It is an amenable number.

7664545 is a deficient number, since it is larger than the sum of its proper divisors (2846879).

7664545 is a wasteful number, since it uses less digits than its factorization.

7664545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218999.

The product of its digits is 100800, while the sum is 37.

The square root of 7664545 is about 2768.4914664850. The cubic root of 7664545 is about 197.1645322534.

The spelling of 7664545 in words is "seven million, six hundred sixty-four thousand, five hundred forty-five".