7664165 has 4 divisors (see below), whose sum is σ = 9197004. Its totient is φ = 6131328.

The previous prime is 7664147. The next prime is 7664177. The reversal of 7664165 is 5614667.

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 5541316 + 2122849 = 2354^2 + 1457^2 .

It is a cyclic number.

It is not a de Polignac number, because 7664165 - 2¹⁴ = 7647781 is a prime.

It is a Duffinian number.

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, 766412 + ... + 766421.

It is an arithmetic number, because the mean of its divisors is an integer number (2299251).

Almost surely, 2^7664165 is an apocalyptic number.

It is an amenable number.

7664165 is a deficient number, since it is larger than the sum of its proper divisors (1532839).

7664165 is a wasteful number, since it uses less digits than its factorization.

7664165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532838.

The product of its digits is 30240, while the sum is 35.

The square root of 7664165 is about 2768.4228362011. The cubic root of 7664165 is about 197.1612737969.

The spelling of 7664165 in words is "seven million, six hundred sixty-four thousand, one hundred sixty-five".