7986447 has 24 divisors (see below), whose sum is σ = 13961376. Its totient is φ = 4294656.

The previous prime is 7986439. The next prime is 7986457. The reversal of 7986447 is 7446897.

It is not a de Polignac number, because 7986447 - 2³ = 7986439 is a prime.

It is a d-powerful number, because it can be written as 7⁶ + 9⁴ + 8⁷ + 6³ + 4 + 4³ + 7⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7986457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2658 + ... + 4799.

It is an arithmetic number, because the mean of its divisors is an integer number (581724).

Almost surely, 2^7986447 is an apocalyptic number.

7986447 is a deficient number, since it is larger than the sum of its proper divisors (5974929).

7986447 is a wasteful number, since it uses less digits than its factorization.

7986447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7487 (or 7484 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 7986447 is about 2826.0302546151. The cubic root of 7986447 is about 199.8869944941.

The spelling of 7986447 in words is "seven million, nine hundred eighty-six thousand, four hundred forty-seven".