6861907 has 12 divisors (see below), whose sum is σ = 7825080. Its totient is φ = 5997888.

The previous prime is 6861851. The next prime is 6861913. The reversal of 6861907 is 7091686.

It is not a de Polignac number, because 6861907 - 2¹⁵ = 6829139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6861947) 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 in 11 ways as a sum of consecutive naturals, for example, 2143 + ... + 4279.

It is an arithmetic number, because the mean of its divisors is an integer number (652090).

Almost surely, 2^6861907 is an apocalyptic number.

6861907 is a deficient number, since it is larger than the sum of its proper divisors (963173).

6861907 is a wasteful number, since it uses less digits than its factorization.

6861907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182 (or 2169 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 6861907 is about 2619.5241934367. The cubic root of 6861907 is about 190.0268383141.

The spelling of 6861907 in words is "six million, eight hundred sixty-one thousand, nine hundred seven".