8429966 has 8 divisors (see below), whose sum is σ = 12686544. Its totient is φ = 4201120.

The previous prime is 8429963. The next prime is 8430013. The reversal of 8429966 is 6699248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8429966² = 142128653522312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8429963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6155 + ... + 7398.

It is an arithmetic number, because the mean of its divisors is an integer number (1585818).

Almost surely, 2^8429966 is an apocalyptic number.

8429966 is a deficient number, since it is larger than the sum of its proper divisors (4256578).

8429966 is a wasteful number, since it uses less digits than its factorization.

8429966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13866.

The product of its digits is 186624, while the sum is 44.

The square root of 8429966 is about 2903.4403730747. The cubic root of 8429966 is about 203.5207093566.

The spelling of 8429966 in words is "eight million, four hundred twenty-nine thousand, nine hundred sixty-six".