7009668 has 18 divisors (see below), whose sum is σ = 17718974. Its totient is φ = 2336544.

The previous prime is 7009663. The next prime is 7009669. The reversal of 7009668 is 8669007.

It can be written as a sum of positive squares in only one way, i.e., 5391684 + 1617984 = 2322^2 + 1272^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 194713 = 7009668 / (7 + 0 + 0 + 9 + 6 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (7009663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97321 + ... + 97392.

Almost surely, 2^7009668 is an apocalyptic number.

It is an amenable number.

7009668 is an abundant number, since it is smaller than the sum of its proper divisors (10709306).

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

7009668 is a wasteful number, since it uses less digits than its factorization.

7009668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194723 (or 194718 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 7009668 is about 2647.5777608977. The cubic root of 7009668 is about 191.3811454716.

The spelling of 7009668 in words is "seven million, nine thousand, six hundred sixty-eight".