8629947 has 6 divisors (see below), whose sum is σ = 12465492. Its totient is φ = 5753292.

The previous prime is 8629927. The next prime is 8629949. The reversal of 8629947 is 7499268.

It is a happy number.

It is not a de Polignac number, because 8629947 - 2⁶ = 8629883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8629949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 479433 + ... + 479450.

It is an arithmetic number, because the mean of its divisors is an integer number (2077582).

Almost surely, 2^8629947 is an apocalyptic number.

8629947 is a deficient number, since it is larger than the sum of its proper divisors (3835545).

8629947 is a wasteful number, since it uses less digits than its factorization.

8629947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958889 (or 958886 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 8629947 is about 2937.6771435949. The cubic root of 8629947 is about 205.1174975838.

The spelling of 8629947 in words is "eight million, six hundred twenty-nine thousand, nine hundred forty-seven".