3904641 has 24 divisors (see below), whose sum is σ = 6342336. Its totient is φ = 2296800.

The previous prime is 3904639. The next prime is 3904643. The reversal of 3904641 is 1464093.

It is an interprime number because it is at equal distance from previous prime (3904639) and next prime (3904643).

It is not a de Polignac number, because 3904641 - 2¹ = 3904639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3904643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1966 + ... + 3416.

It is an arithmetic number, because the mean of its divisors is an integer number (264264).

Almost surely, 2^3904641 is an apocalyptic number.

It is an amenable number.

3904641 is a deficient number, since it is larger than the sum of its proper divisors (2437695).

3904641 is a wasteful number, since it uses less digits than its factorization.

3904641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493 (or 1490 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 3904641 is about 1976.0164473000. The cubic root of 3904641 is about 157.4685046622.

The spelling of 3904641 in words is "three million, nine hundred four thousand, six hundred forty-one".