6886742 has 8 divisors (see below), whose sum is σ = 10356600. Its totient is φ = 3434544.

The previous prime is 6886739. The next prime is 6886753. The reversal of 6886742 is 2476886.

Added to its reverse (2476886) it gives a triangular number (9363628 = T₄₃₂₇).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6886742.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3392 + ... + 5027.

It is an arithmetic number, because the mean of its divisors is an integer number (1294575).

Almost surely, 2^6886742 is an apocalyptic number.

6886742 is a deficient number, since it is larger than the sum of its proper divisors (3469858).

6886742 is a wasteful number, since it uses less digits than its factorization.

6886742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8830.

The product of its digits is 129024, while the sum is 41.

The square root of 6886742 is about 2624.2602767256. The cubic root of 6886742 is about 190.2558142376.

Adding to 6886742 its reverse (2476886), we get a triangular number (9363628 = T₄₃₂₇).

The spelling of 6886742 in words is "six million, eight hundred eighty-six thousand, seven hundred forty-two".