7666445 has 8 divisors (see below), whose sum is σ = 9227520. Its totient is φ = 6114640.

The previous prime is 7666433. The next prime is 7666453. The reversal of 7666445 is 5446667.

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

It is not a de Polignac number, because 7666445 - 2⁶ = 7666381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7666399 and 7666408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341 + ... + 3930.

It is an arithmetic number, because the mean of its divisors is an integer number (1153440).

Almost surely, 2^7666445 is an apocalyptic number.

It is an amenable number.

7666445 is a deficient number, since it is larger than the sum of its proper divisors (1561075).

7666445 is a wasteful number, since it uses less digits than its factorization.

7666445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4635.

The product of its digits is 120960, while the sum is 38.

The square root of 7666445 is about 2768.8345923872. The cubic root of 7666445 is about 197.1808229208.

The spelling of 7666445 in words is "seven million, six hundred sixty-six thousand, four hundred forty-five".