6862645 has 8 divisors (see below), whose sum is σ = 8719704. Its totient is φ = 5167104.

The previous prime is 6862643. The next prime is 6862693. The reversal of 6862645 is 5462686.

6862645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3740356 + 3122289 = 1934^2 + 1767^2 .

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 6862645 - 2¹ = 6862643 is a prime.

It is an Ulam number.

It is a Duffinian number.

6862645 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6862643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40284 + ... + 40453.

It is an arithmetic number, because the mean of its divisors is an integer number (1089963).

Almost surely, 2^6862645 is an apocalyptic number.

It is an amenable number.

6862645 is a deficient number, since it is larger than the sum of its proper divisors (1857059).

6862645 is a wasteful number, since it uses less digits than its factorization.

6862645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80759.

The product of its digits is 69120, while the sum is 37.

The square root of 6862645 is about 2619.6650549259. The cubic root of 6862645 is about 190.0336505496.

The spelling of 6862645 in words is "six million, eight hundred sixty-two thousand, six hundred forty-five".