7665612 has 12 divisors (see below), whose sum is σ = 17886456. Its totient is φ = 2555200.

The previous prime is 7665583. The next prime is 7665613. The reversal of 7665612 is 2165667.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7665613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319389 + ... + 319412.

It is an arithmetic number, because the mean of its divisors is an integer number (1490538).

Almost surely, 2^7665612 is an apocalyptic number.

It is an amenable number.

7665612 is an abundant number, since it is smaller than the sum of its proper divisors (10220844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7665612 is a wasteful number, since it uses less digits than its factorization.

7665612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638808 (or 638806 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 7665612 is about 2768.6841640028. The cubic root of 7665612 is about 197.1736810806.

Subtracting from 7665612 its reverse (2165667), we obtain a palindrome (5499945).

The spelling of 7665612 in words is "seven million, six hundred sixty-five thousand, six hundred twelve".