6693642 has 12 divisors (see below), whose sum is σ = 14502930. Its totient is φ = 2231208.

The previous prime is 6693641. The next prime is 6693647. The reversal of 6693642 is 2463966.

6693642 is a `hidden beast` number, since 6 + 6 + 9 + 3 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6548481 + 145161 = 2559^2 + 381^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6693597 and 6693606.

It is not an unprimeable number, because it can be changed into a prime (6693641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 185917 + ... + 185952.

Almost surely, 2^6693642 is an apocalyptic number.

6693642 is an abundant number, since it is smaller than the sum of its proper divisors (7809288).

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

6693642 is a wasteful number, since it uses less digits than its factorization.

6693642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371877 (or 371874 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 6693642 is about 2587.2073747576. The cubic root of 6693642 is about 188.4607117682.

The spelling of 6693642 in words is "six million, six hundred ninety-three thousand, six hundred forty-two".