8661842 has 8 divisors (see below), whose sum is σ = 14848896. Its totient is φ = 3712212.

The previous prime is 8661841. The next prime is 8661871. The reversal of 8661842 is 2481668.

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

It is not an unprimeable number, because it can be changed into a prime (8661841) 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, 309338 + ... + 309365.

It is an arithmetic number, because the mean of its divisors is an integer number (1856112).

Almost surely, 2^8661842 is an apocalyptic number.

8661842 is a deficient number, since it is larger than the sum of its proper divisors (6187054).

8661842 is a wasteful number, since it uses less digits than its factorization.

8661842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618712.

The product of its digits is 18432, while the sum is 35.

The square root of 8661842 is about 2943.1007458121. The cubic root of 8661842 is about 205.3698814977.

The spelling of 8661842 in words is "eight million, six hundred sixty-one thousand, eight hundred forty-two".