7066691 has 8 divisors (see below), whose sum is σ = 7421520. Its totient is φ = 6719328.

The previous prime is 7066643. The next prime is 7066699. The reversal of 7066691 is 1966607.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7066691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7066699) 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, 125 + ... + 3761.

It is an arithmetic number, because the mean of its divisors is an integer number (927690).

Almost surely, 2^7066691 is an apocalyptic number.

7066691 is a deficient number, since it is larger than the sum of its proper divisors (354829).

7066691 is a wasteful number, since it uses less digits than its factorization.

7066691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 7066691 is about 2658.3248484713. The cubic root of 7066691 is about 191.8987005423.

The spelling of 7066691 in words is "seven million, sixty-six thousand, six hundred ninety-one".