3904069 has 8 divisors (see below), whose sum is σ = 4231640. Its totient is φ = 3601728.

The previous prime is 3904057. The next prime is 3904081. The reversal of 3904069 is 9604093.

3904069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3904057) and next prime (3904081).

It can be written as a sum of positive squares in 4 ways, for example, as 1181569 + 2722500 = 1087^2 + 1650^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3904069 is a prime.

It is a super-2 number, since 2×3904069² = 30483509513522, which contains 22 as substring.

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 3904069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3904039) 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 7 ways as a sum of consecutive naturals, for example, 1309 + ... + 3085.

It is an arithmetic number, because the mean of its divisors is an integer number (528955).

Almost surely, 2^3904069 is an apocalyptic number.

It is an amenable number.

3904069 is a deficient number, since it is larger than the sum of its proper divisors (327571).

3904069 is an equidigital number, since it uses as much as digits as its factorization.

3904069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 1790 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 3904069 is about 1975.8717063615. The cubic root of 3904069 is about 157.4608149768.

The spelling of 3904069 in words is "three million, nine hundred four thousand, sixty-nine".