6404812 has 6 divisors (see below), whose sum is σ = 11208428. Its totient is φ = 3202404.

The previous prime is 6404809. The next prime is 6404819. The reversal of 6404812 is 2184046.

It is not an unprimeable number, because it can be changed into a prime (6404819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800598 + ... + 800605.

Almost surely, 2^6404812 is an apocalyptic number.

It is an amenable number.

6404812 is a deficient number, since it is larger than the sum of its proper divisors (4803616).

6404812 is a wasteful number, since it uses less digits than its factorization.

6404812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601207 (or 1601205 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 6404812 is about 2530.7730044396. The cubic root of 6404812 is about 185.7100736154.

Adding to 6404812 its reverse (2184046), we get a palindrome (8588858).

The spelling of 6404812 in words is "six million, four hundred four thousand, eight hundred twelve".