6806402 has 4 divisors (see below), whose sum is σ = 10209606. Its totient is φ = 3403200.

The previous prime is 6806383. The next prime is 6806407. The reversal of 6806402 is 2046086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6345361 + 461041 = 2519^2 + 679^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6806407) 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, 1701599 + ... + 1701602.

Almost surely, 2^6806402 is an apocalyptic number.

6806402 is a deficient number, since it is larger than the sum of its proper divisors (3403204).

6806402 is a wasteful number, since it uses less digits than its factorization.

6806402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403203.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 6806402 is about 2608.9082007614. The cubic root of 6806402 is about 189.5130838009.

The spelling of 6806402 in words is "six million, eight hundred six thousand, four hundred two".