8645946 has 16 divisors (see below), whose sum is σ = 17363808. Its totient is φ = 2870000.

The previous prime is 8645941. The next prime is 8645971. The reversal of 8645946 is 6495468.

It is a junction number, because it is equal to n+sod(n) for n = 8645898 and 8645907.

It is not an unprimeable number, because it can be changed into a prime (8645941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1365 + ... + 4376.

It is an arithmetic number, because the mean of its divisors is an integer number (1085238).

Almost surely, 2^8645946 is an apocalyptic number.

8645946 is an abundant number, since it is smaller than the sum of its proper divisors (8717862).

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

8645946 is a wasteful number, since it uses less digits than its factorization.

8645946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997.

The product of its digits is 207360, while the sum is 42.

The square root of 8645946 is about 2940.3989525233. The cubic root of 8645946 is about 205.2441746450.

It can be divided in two parts, 8645 and 946, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 8645946 in words is "eight million, six hundred forty-five thousand, nine hundred forty-six".