6445912 has 24 divisors (see below), whose sum is σ = 13286700. Its totient is φ = 2929520.

The previous prime is 6445871. The next prime is 6445919. The reversal of 6445912 is 2195446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6445919) 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 5 ways as a sum of consecutive naturals, for example, 2362 + ... + 4297.

Almost surely, 2^6445912 is an apocalyptic number.

It is an amenable number.

6445912 is an abundant number, since it is smaller than the sum of its proper divisors (6840788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6445912 is a wasteful number, since it uses less digits than its factorization.

6445912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6687 (or 6672 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 6445912 is about 2538.8800680615. The cubic root of 6445912 is about 186.1064638890.

It can be divided in two parts, 644 and 5912, that added together give a palindrome (6556).

The spelling of 6445912 in words is "six million, four hundred forty-five thousand, nine hundred twelve".