6402817 has 2 divisors, whose sum is σ = 6402818. Its totient is φ = 6402816.

The previous prime is 6402787. The next prime is 6402839. The reversal of 6402817 is 7182046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6031936 + 370881 = 2456^2 + 609^2 .

It is a cyclic number.

It is not a de Polignac number, because 6402817 - 2¹⁹ = 5878529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6442817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201408 + 3201409.

It is an arithmetic number, because the mean of its divisors is an integer number (3201409).

Almost surely, 2^6402817 is an apocalyptic number.

It is an amenable number.

6402817 is a deficient number, since it is larger than the sum of its proper divisors (1).

6402817 is an equidigital number, since it uses as much as digits as its factorization.

6402817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 6402817 is about 2530.3788253935. The cubic root of 6402817 is about 185.6907896733.

The spelling of 6402817 in words is "six million, four hundred two thousand, eight hundred seventeen".