6687094 has 4 divisors (see below), whose sum is σ = 10030644. Its totient is φ = 3343546.

The previous prime is 6687077. The next prime is 6687097. The reversal of 6687094 is 4907866.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6687097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1671772 + ... + 1671775.

It is an arithmetic number, because the mean of its divisors is an integer number (2507661).

Almost surely, 2^6687094 is an apocalyptic number.

6687094 is a deficient number, since it is larger than the sum of its proper divisors (3343550).

6687094 is a wasteful number, since it uses less digits than its factorization.

6687094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343549.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 6687094 is about 2585.9416080028. The cubic root of 6687094 is about 188.3992383403.

The spelling of 6687094 in words is "six million, six hundred eighty-seven thousand, ninety-four".