6402719 has 2 divisors, whose sum is σ = 6402720. Its totient is φ = 6402718.

The previous prime is 6402701. The next prime is 6402731. The reversal of 6402719 is 9172046.

6402719 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 is a cyclic number.

It is not a de Polignac number, because 6402719 - 2¹⁶ = 6337183 is a prime.

It is a super-2 number, since 2×6402719² = 81989621185922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6402691 and 6402700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6402779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201359 + 3201360.

It is an arithmetic number, because the mean of its divisors is an integer number (3201360).

Almost surely, 2^6402719 is an apocalyptic number.

6402719 is a deficient number, since it is larger than the sum of its proper divisors (1).

6402719 is an equidigital number, since it uses as much as digits as its factorization.

6402719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 6402719 is about 2530.3594606301. The cubic root of 6402719 is about 185.6898422887.

It can be divided in two parts, 64027 and 19, that added together give a palindrome (64046).

The spelling of 6402719 in words is "six million, four hundred two thousand, seven hundred nineteen".