6402699 has 8 divisors (see below), whose sum is σ = 9485520. Its totient is φ = 4268448.

The previous prime is 6402661. The next prime is 6402701. The reversal of 6402699 is 9962046.

6402699 is a `hidden beast` number, since 640 + 2 + 6 + 9 + 9 = 666.

It is not a de Polignac number, because 6402699 - 2²⁰ = 5354123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6402619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118542 + ... + 118595.

It is an arithmetic number, because the mean of its divisors is an integer number (1185690).

Almost surely, 2^6402699 is an apocalyptic number.

6402699 is a deficient number, since it is larger than the sum of its proper divisors (3082821).

6402699 is a wasteful number, since it uses less digits than its factorization.

6402699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237146 (or 237140 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 6402699 is about 2530.3555086193. The cubic root of 6402699 is about 185.6896489437.

The spelling of 6402699 in words is "six million, four hundred two thousand, six hundred ninety-nine".