6390851 has 2 divisors, whose sum is σ = 6390852. Its totient is φ = 6390850.

The previous prime is 6390847. The next prime is 6390871. The reversal of 6390851 is 1580936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6390851 - 2² = 6390847 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6390871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3195425 + 3195426.

It is an arithmetic number, because the mean of its divisors is an integer number (3195426).

Almost surely, 2^6390851 is an apocalyptic number.

6390851 is a deficient number, since it is larger than the sum of its proper divisors (1).

6390851 is an equidigital number, since it uses as much as digits as its factorization.

6390851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 6390851 is about 2528.0132515475. The cubic root of 6390851 is about 185.5750405367.

The spelling of 6390851 in words is "six million, three hundred ninety thousand, eight hundred fifty-one".