8463947 has 2 divisors, whose sum is σ = 8463948. Its totient is φ = 8463946.

The previous prime is 8463937. The next prime is 8463979. The reversal of 8463947 is 7493648.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8463947 - 2²⁰ = 7415371 is a prime.

It is a d-powerful number, because it can be written as 8⁷ + 4³ + 6⁶ + 3¹³ + 9⁶ + 4¹¹ + 7 .

It is not a weakly prime, because it can be changed into another prime (8463937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4231973 + 4231974.

It is an arithmetic number, because the mean of its divisors is an integer number (4231974).

Almost surely, 2^8463947 is an apocalyptic number.

8463947 is a deficient number, since it is larger than the sum of its proper divisors (1).

8463947 is an equidigital number, since it uses as much as digits as its factorization.

8463947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 8463947 is about 2909.2863386061. The cubic root of 8463947 is about 203.7938051774.

Subtracting from 8463947 its reverse (7493648), we obtain a cube (970299 = 99³).

The spelling of 8463947 in words is "eight million, four hundred sixty-three thousand, nine hundred forty-seven".