8349966 has 64 divisors (see below), whose sum is σ = 19837440. Its totient is φ = 2630232.

The previous prime is 8349953. The next prime is 8349977. The reversal of 8349966 is 6699438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100561 + ... + 100643.

It is an arithmetic number, because the mean of its divisors is an integer number (309960).

Almost surely, 2^8349966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8349966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9918720).

8349966 is an abundant number, since it is smaller than the sum of its proper divisors (11487474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8349966 is an equidigital number, since it uses as much as digits as its factorization.

8349966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 111 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 8349966 is about 2889.6307722614. The cubic root of 8349966 is about 202.8748611969.

The spelling of 8349966 in words is "eight million, three hundred forty-nine thousand, nine hundred sixty-six".