6851437 has 2 divisors, whose sum is σ = 6851438. Its totient is φ = 6851436.

The previous prime is 6851407. The next prime is 6851441. The reversal of 6851437 is 7341586.

6851437 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5248681 + 1602756 = 2291^2 + 1266^2 .

It is a cyclic number.

It is not a de Polignac number, because 6851437 - 2¹¹ = 6849389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6851407) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3425718 + 3425719.

It is an arithmetic number, because the mean of its divisors is an integer number (3425719).

Almost surely, 2^6851437 is an apocalyptic number.

It is an amenable number.

6851437 is a deficient number, since it is larger than the sum of its proper divisors (1).

6851437 is an equidigital number, since it uses as much as digits as its factorization.

6851437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 6851437 is about 2617.5249760031. The cubic root of 6851437 is about 189.9301405221.

The spelling of 6851437 in words is "six million, eight hundred fifty-one thousand, four hundred thirty-seven".