8467947 has 12 divisors (see below), whose sum is σ = 12516504. Its totient is φ = 5513760.

The previous prime is 8467903. The next prime is 8467951. The reversal of 8467947 is 7497648.

8467947 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 a de Polignac number, because none of the positive numbers 2^k-8467947 is a prime.

It is a super-2 number, since 2×8467947² = 143412252789618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8463947) 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, 10554 + ... + 11327.

It is an arithmetic number, because the mean of its divisors is an integer number (1043042).

Almost surely, 2^8467947 is an apocalyptic number.

8467947 is a deficient number, since it is larger than the sum of its proper divisors (4048557).

8467947 is a wasteful number, since it uses less digits than its factorization.

8467947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21930 (or 21927 counting only the distinct ones).

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

The square root of 8467947 is about 2909.9737112215. The cubic root of 8467947 is about 203.8259039464.

Subtracting from 8467947 its reverse (7497648), we obtain a cube (970299 = 99³).

The spelling of 8467947 in words is "eight million, four hundred sixty-seven thousand, nine hundred forty-seven".