8478907 has 2 divisors, whose sum is σ = 8478908. Its totient is φ = 8478906.

The previous prime is 8478893. The next prime is 8478929. The reversal of 8478907 is 7098748.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8478907 is a prime.

It is not a weakly prime, because it can be changed into another prime (8478947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239453 + 4239454.

It is an arithmetic number, because the mean of its divisors is an integer number (4239454).

Almost surely, 2^8478907 is an apocalyptic number.

8478907 is a deficient number, since it is larger than the sum of its proper divisors (1).

8478907 is an equidigital number, since it uses as much as digits as its factorization.

8478907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 8478907 is about 2911.8562807941. The cubic root of 8478907 is about 203.9138028123.

The spelling of 8478907 in words is "eight million, four hundred seventy-eight thousand, nine hundred seven".