6851428 has 12 divisors (see below), whose sum is σ = 12282732. Its totient is φ = 3342080.

The previous prime is 6851407. The next prime is 6851437. The reversal of 6851428 is 8241586.

It can be written as a sum of positive squares in 2 ways, for example, as 1272384 + 5579044 = 1128^2 + 2362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6851393 and 6851402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20725 + ... + 21052.

It is an arithmetic number, because the mean of its divisors is an integer number (1023561).

Almost surely, 2^6851428 is an apocalyptic number.

It is an amenable number.

6851428 is a deficient number, since it is larger than the sum of its proper divisors (5431304).

6851428 is a wasteful number, since it uses less digits than its factorization.

6851428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41822 (or 41820 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 6851428 is about 2617.5232568212. The cubic root of 6851428 is about 189.9300573584.

The spelling of 6851428 in words is "six million, eight hundred fifty-one thousand, four hundred twenty-eight".