6861349 has 4 divisors (see below), whose sum is σ = 7485120. Its totient is φ = 6237580.

The previous prime is 6861331. The next prime is 6861367. The reversal of 6861349 is 9431686.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (6861331) and next prime (6861367).

It is a cyclic number.

It is not a de Polignac number, because 6861349 - 2⁹ = 6860837 is a prime.

It is a super-2 number, since 2×6861349² = 94156220199602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6861329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311869 + ... + 311890.

It is an arithmetic number, because the mean of its divisors is an integer number (1871280).

Almost surely, 2^6861349 is an apocalyptic number.

It is an amenable number.

6861349 is a deficient number, since it is larger than the sum of its proper divisors (623771).

6861349 is a wasteful number, since it uses less digits than its factorization.

6861349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623770.

The product of its digits is 31104, while the sum is 37.

The square root of 6861349 is about 2619.4176833793. The cubic root of 6861349 is about 190.0216872751.

The spelling of 6861349 in words is "six million, eight hundred sixty-one thousand, three hundred forty-nine".