6446916 has 36 divisors (see below), whose sum is σ = 18625152. Its totient is φ = 1841904.

The previous prime is 6446863. The next prime is 6446929. The reversal of 6446916 is 6196446.

6446916 is a `hidden beast` number, since 644 + 6 + 9 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×6446916² = 83125451822112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 12540 + ... + 13043.

Almost surely, 2^6446916 is an apocalyptic number.

It is an amenable number.

6446916 is an abundant number, since it is smaller than the sum of its proper divisors (12178236).

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

6446916 is a wasteful number, since it uses less digits than its factorization.

6446916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25600 (or 25595 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 6446916 is about 2539.0777853386. The cubic root of 6446916 is about 186.1161258882.

The spelling of 6446916 in words is "six million, four hundred forty-six thousand, nine hundred sixteen".