6903666 has 96 divisors (see below), whose sum is σ = 19813248. Its totient is φ = 1681920.

The previous prime is 6903647. The next prime is 6903679. The reversal of 6903666 is 6663096.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6903666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23416 + ... + 23708.

It is an arithmetic number, because the mean of its divisors is an integer number (206388).

Almost surely, 2^6903666 is an apocalyptic number.

6903666 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6903666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9906624).

6903666 is an abundant number, since it is smaller than the sum of its proper divisors (12909582).

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

6903666 is a wasteful number, since it uses less digits than its factorization.

6903666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 6903666 is about 2627.4828258240. The cubic root of 6903666 is about 190.4115364158.

It can be divided in two parts, 6903 and 666, that added together give a square (7569 = 87²).

The spelling of 6903666 in words is "six million, nine hundred three thousand, six hundred sixty-six".