6606404 has 24 divisors (see below), whose sum is σ = 13991040. Its totient is φ = 2664576.

The previous prime is 6606389. The next prime is 6606409. The reversal of 6606404 is 4046066.

It is a super-2 number, since 2×6606404² = 87289147622432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6606409) 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, 6464 + ... + 7415.

It is an arithmetic number, because the mean of its divisors is an integer number (582960).

Almost surely, 2^6606404 is an apocalyptic number.

It is an amenable number.

6606404 is an abundant number, since it is smaller than the sum of its proper divisors (7384636).

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

6606404 is a wasteful number, since it uses less digits than its factorization.

6606404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13907 (or 13905 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 6606404 is about 2570.2925903484. The cubic root of 6606404 is about 187.6383950098.

The spelling of 6606404 in words is "six million, six hundred six thousand, four hundred four".