6402751 has 2 divisors, whose sum is σ = 6402752. Its totient is φ = 6402750.

The previous prime is 6402733. The next prime is 6402779. The reversal of 6402751 is 1572046.

6402751 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6402751 - 2⁵ = 6402719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6402701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201375 + 3201376.

It is an arithmetic number, because the mean of its divisors is an integer number (3201376).

Almost surely, 2^6402751 is an apocalyptic number.

6402751 is a deficient number, since it is larger than the sum of its proper divisors (1).

6402751 is an equidigital number, since it uses as much as digits as its factorization.

6402751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 6402751 is about 2530.3657838344. The cubic root of 6402751 is about 185.6901516398.

Adding to 6402751 its reverse (1572046), we get a palindrome (7974797).

The spelling of 6402751 in words is "six million, four hundred two thousand, seven hundred fifty-one".