7642668 has 24 divisors (see below), whose sum is σ = 19454400. Its totient is φ = 2315920.

The previous prime is 7642627. The next prime is 7642669. The reversal of 7642668 is 8662467.

7642668 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (7642669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28818 + ... + 29081.

It is an arithmetic number, because the mean of its divisors is an integer number (810600).

Almost surely, 2^7642668 is an apocalyptic number.

It is an amenable number.

7642668 is an abundant number, since it is smaller than the sum of its proper divisors (11811732).

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

7642668 is a wasteful number, since it uses less digits than its factorization.

7642668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57917 (or 57915 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 7642668 is about 2764.5375743513. The cubic root of 7642668 is about 196.9767638170.

The spelling of 7642668 in words is "seven million, six hundred forty-two thousand, six hundred sixty-eight".