6381085 has 8 divisors (see below), whose sum is σ = 7692120. Its totient is φ = 5081664.

The previous prime is 6381077. The next prime is 6381101. The reversal of 6381085 is 5801836.

It can be written as a sum of positive squares in 4 ways, for example, as 534361 + 5846724 = 731^2 + 2418^2 .

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 6381085 - 2³ = 6381077 is a prime.

6381085 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1642 + ... + 3931.

It is an arithmetic number, because the mean of its divisors is an integer number (961515).

Almost surely, 2^6381085 is an apocalyptic number.

It is an amenable number.

6381085 is a deficient number, since it is larger than the sum of its proper divisors (1311035).

6381085 is a wasteful number, since it uses less digits than its factorization.

6381085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5807.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 6381085 is about 2526.0809567391. The cubic root of 6381085 is about 185.4804652455.

The spelling of 6381085 in words is "six million, three hundred eighty-one thousand, eighty-five".