6420676 has 6 divisors (see below), whose sum is σ = 11236190. Its totient is φ = 3210336.

The previous prime is 6420599. The next prime is 6420683. The reversal of 6420676 is 6760246.

It can be written as a sum of positive squares in only one way, i.e., 6380676 + 40000 = 2526^2 + 200^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 802581 + ... + 802588.

Almost surely, 2^6420676 is an apocalyptic number.

It is an amenable number.

6420676 is a deficient number, since it is larger than the sum of its proper divisors (4815514).

6420676 is a wasteful number, since it uses less digits than its factorization.

6420676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605173 (or 1605171 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 6420676 is about 2533.9052863120. The cubic root of 6420676 is about 185.8632748626.

The spelling of 6420676 in words is "six million, four hundred twenty thousand, six hundred seventy-six".