8447481 has 12 divisors (see below), whose sum is σ = 13945152. Its totient is φ = 4827096.

The previous prime is 8447477. The next prime is 8447489. The reversal of 8447481 is 1847448.

It is a happy number.

8447481 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8447481 - 2² = 8447477 is a prime.

It is a super-2 number, since 2×8447481² = 142719870490722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8447489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66981 + ... + 67106.

It is an arithmetic number, because the mean of its divisors is an integer number (1162096).

Almost surely, 2^8447481 is an apocalyptic number.

It is an amenable number.

8447481 is a deficient number, since it is larger than the sum of its proper divisors (5497671).

8447481 is a wasteful number, since it uses less digits than its factorization.

8447481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134100 (or 134097 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 8447481 is about 2906.4550572820. The cubic root of 8447481 is about 203.6615639893.

The spelling of 8447481 in words is "eight million, four hundred forty-seven thousand, four hundred eighty-one".