6709861 has 8 divisors (see below), whose sum is σ = 6888960. Its totient is φ = 6532368.

The previous prime is 6709841. The next prime is 6709867. The reversal of 6709861 is 1689076.

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

It is a cyclic number.

It is not a de Polignac number, because 6709861 - 2⁹ = 6709349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6709861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6709867) 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 7 ways as a sum of consecutive naturals, for example, 17055 + ... + 17443.

It is an arithmetic number, because the mean of its divisors is an integer number (861120).

Almost surely, 2^6709861 is an apocalyptic number.

It is an amenable number.

6709861 is a deficient number, since it is larger than the sum of its proper divisors (179099).

6709861 is a wasteful number, since it uses less digits than its factorization.

6709861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803.

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

The square root of 6709861 is about 2590.3399390814. The cubic root of 6709861 is about 188.6128052924.

The spelling of 6709861 in words is "six million, seven hundred nine thousand, eight hundred sixty-one".