6856465 has 24 divisors (see below), whose sum is σ = 10342080. Its totient is φ = 4271520.

The previous prime is 6856463. The next prime is 6856469. The reversal of 6856465 is 5646586.

It is not a de Polignac number, because 6856465 - 2¹ = 6856463 is a prime.

It is a super-2 number, since 2×6856465² = 94022224592450, which contains 22 as substring.

6856465 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6856463) 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 23 ways as a sum of consecutive naturals, for example, 3426 + ... + 5044.

It is an arithmetic number, because the mean of its divisors is an integer number (430920).

Almost surely, 2^6856465 is an apocalyptic number.

It is an amenable number.

6856465 is a deficient number, since it is larger than the sum of its proper divisors (3485615).

6856465 is a wasteful number, since it uses less digits than its factorization.

6856465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653 (or 1642 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 6856465 is about 2618.4852491469. The cubic root of 6856465 is about 189.9765899135.

The spelling of 6856465 in words is "six million, eight hundred fifty-six thousand, four hundred sixty-five".