4066697 has 4 divisors (see below), whose sum is σ = 4074756. Its totient is φ = 4058640.

The previous prime is 4066691. The next prime is 4066709. The reversal of 4066697 is 7966604.

4066697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2876416 + 1190281 = 1696^2 + 1091^2 .

It is a cyclic number.

It is not a de Polignac number, because 4066697 - 2⁸ = 4066441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4066697.

It is not an unprimeable number, because it can be changed into a prime (4066691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3218 + ... + 4299.

It is an arithmetic number, because the mean of its divisors is an integer number (1018689).

Almost surely, 2^4066697 is an apocalyptic number.

It is an amenable number.

4066697 is a deficient number, since it is larger than the sum of its proper divisors (8059).

4066697 is an equidigital number, since it uses as much as digits as its factorization.

4066697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8058.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 4066697 is about 2016.6053158712. The cubic root of 4066697 is about 159.6175370122.

The spelling of 4066697 in words is "four million, sixty-six thousand, six hundred ninety-seven".