3904689 has 8 divisors (see below), whose sum is σ = 5215392. Its totient is φ = 2598560.

The previous prime is 3904673. The next prime is 3904699. The reversal of 3904689 is 9864093.

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

It is a cyclic number.

It is not a de Polignac number, because 3904689 - 2⁴ = 3904673 is a prime.

3904689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3904639) 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, 2677 + ... + 3869.

It is an arithmetic number, because the mean of its divisors is an integer number (651924).

Almost surely, 2^3904689 is an apocalyptic number.

It is an amenable number.

3904689 is a deficient number, since it is larger than the sum of its proper divisors (1310703).

3904689 is a wasteful number, since it uses less digits than its factorization.

3904689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 3904689 is about 1976.0285929105. The cubic root of 3904689 is about 157.4691499164.

The spelling of 3904689 in words is "three million, nine hundred four thousand, six hundred eighty-nine".