4069069 has 4 divisors (see below), whose sum is σ = 4308444. Its totient is φ = 3829696.

The previous prime is 4069063. The next prime is 4069073. The reversal of 4069069 is 9609604.

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 2941225 + 1127844 = 1715^2 + 1062^2 .

It is a cyclic number.

It is not a de Polignac number, because 4069069 - 2¹⁵ = 4036301 is a prime.

It is a super-2 number, since 2×4069069² = 33114645053522, which contains 22 as substring.

It is a Duffinian number.

4069069 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4069063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119662 + ... + 119695.

It is an arithmetic number, because the mean of its divisors is an integer number (1077111).

Almost surely, 2^4069069 is an apocalyptic number.

It is an amenable number.

4069069 is a deficient number, since it is larger than the sum of its proper divisors (239375).

4069069 is a wasteful number, since it uses less digits than its factorization.

4069069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239374.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 4069069 is about 2017.1933472030. The cubic root of 4069069 is about 159.6485645848.

The spelling of 4069069 in words is "four million, sixty-nine thousand, sixty-nine".