8661898 has 8 divisors (see below), whose sum is σ = 14848992. Its totient is φ = 3712236.

The previous prime is 8661889. The next prime is 8661899. The reversal of 8661898 is 8981668.

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 (8661899) 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, 309340 + ... + 309367.

It is an arithmetic number, because the mean of its divisors is an integer number (1856124).

Almost surely, 2^8661898 is an apocalyptic number.

8661898 is a deficient number, since it is larger than the sum of its proper divisors (6187094).

8661898 is a wasteful number, since it uses less digits than its factorization.

8661898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618716.

The product of its digits is 165888, while the sum is 46.

The square root of 8661898 is about 2943.1102595723. The cubic root of 8661898 is about 205.3703240782.

It can be divided in two parts, 8661 and 898, that added together give a palindrome (9559).

The spelling of 8661898 in words is "eight million, six hundred sixty-one thousand, eight hundred ninety-eight".