3668805 has 48 divisors (see below), whose sum is σ = 7662720. Its totient is φ = 1586304.

The previous prime is 3668801. The next prime is 3668807. The reversal of 3668805 is 5088663.

It is not a de Polignac number, because 3668805 - 2² = 3668801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3668805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3668801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5679 + ... + 6291.

It is an arithmetic number, because the mean of its divisors is an integer number (159640).

Almost surely, 2^3668805 is an apocalyptic number.

3668805 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3668805 is an abundant number, since it is smaller than the sum of its proper divisors (3993915).

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

3668805 is a wasteful number, since it uses less digits than its factorization.

3668805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3668805 is about 1915.4124882124. The cubic root of 3668805 is about 154.2321371142.

The spelling of 3668805 in words is "three million, six hundred sixty-eight thousand, eight hundred five".