8661402 has 24 divisors (see below), whose sum is σ = 19007040. Its totient is φ = 2850120.

The previous prime is 8661383. The next prime is 8661407. The reversal of 8661402 is 2041668.

It is not an unprimeable number, because it can be changed into a prime (8661407) 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, 1624 + ... + 4467.

It is an arithmetic number, because the mean of its divisors is an integer number (791960).

Almost surely, 2^8661402 is an apocalyptic number.

8661402 is an abundant number, since it is smaller than the sum of its proper divisors (10345638).

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

8661402 is a wasteful number, since it uses less digits than its factorization.

8661402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6178 (or 6175 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 8661402 is about 2943.0259937690. The cubic root of 8661402 is about 205.3664040126.

The spelling of 8661402 in words is "eight million, six hundred sixty-one thousand, four hundred two".