9478647 has 8 divisors (see below), whose sum is σ = 14042480. Its totient is φ = 6319080.

The previous prime is 9478643. The next prime is 9478681. The reversal of 9478647 is 7468749.

9478647 is digitally balanced in base 2, base 3 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 9478647 - 2² = 9478643 is a prime.

It is a Duffinian number.

9478647 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9478643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175504 + ... + 175557.

It is an arithmetic number, because the mean of its divisors is an integer number (1755310).

Almost surely, 2^9478647 is an apocalyptic number.

9478647 is a deficient number, since it is larger than the sum of its proper divisors (4563833).

9478647 is a wasteful number, since it uses less digits than its factorization.

9478647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351070 (or 351064 counting only the distinct ones).

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

The square root of 9478647 is about 3078.7411388423. The cubic root of 9478647 is about 211.6323802802.

The spelling of 9478647 in words is "nine million, four hundred seventy-eight thousand, six hundred forty-seven".