7480447 has 6 divisors (see below), whose sum is σ = 8100312. Its totient is φ = 6904872.

The previous prime is 7480441. The next prime is 7480457. The reversal of 7480447 is 7440847.

It is a de Polignac number, because none of the positive numbers 2^k-7480447 is a prime.

It is a Duffinian number.

7480447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7480441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21963 + ... + 22300.

It is an arithmetic number, because the mean of its divisors is an integer number (1350052).

Almost surely, 2^7480447 is an apocalyptic number.

7480447 is a deficient number, since it is larger than the sum of its proper divisors (619865).

7480447 is a wasteful number, since it uses less digits than its factorization.

7480447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44289 (or 44276 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 7480447 is about 2735.0405847080. The cubic root of 7480447 is about 195.5731286698.

The spelling of 7480447 in words is "seven million, four hundred eighty thousand, four hundred forty-seven".