3904634 has 4 divisors (see below), whose sum is σ = 5856954. Its totient is φ = 1952316.

The previous prime is 3904631. The next prime is 3904639. The reversal of 3904634 is 4364093.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 3478225 + 426409 = 1865^2 + 653^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3904597 and 3904606.

It is not an unprimeable number, because it can be changed into a prime (3904631) 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 as a sum of consecutive naturals, namely, 976157 + ... + 976160.

Almost surely, 2^3904634 is an apocalyptic number.

3904634 is a deficient number, since it is larger than the sum of its proper divisors (1952320).

3904634 is a wasteful number, since it uses less digits than its factorization.

3904634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952319.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 3904634 is about 1976.0146760589. The cubic root of 3904634 is about 157.4684105622.

The spelling of 3904634 in words is "three million, nine hundred four thousand, six hundred thirty-four".