2006904 has 16 divisors (see below), whose sum is σ = 5017320. Its totient is φ = 668960.

The previous prime is 2006903. The next prime is 2006923. The reversal of 2006904 is 4096002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41787 + ... + 41834.

2^2006904 is an apocalyptic number.

2006904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2006904 is an abundant number, since it is smaller than the sum of its proper divisors (3010416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2006904 is a wasteful number, since it uses less digits than its factorization.

2006904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83630 (or 83626 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2006904 is about 1416.6523920849. The cubic root of 2006904 is about 126.1369134063.

The spelling of 2006904 in words is "two million, six thousand, nine hundred four".