8660398 has 4 divisors (see below), whose sum is σ = 12990600. Its totient is φ = 4330198.

The previous prime is 8660387. The next prime is 8660401. The reversal of 8660398 is 8930668.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8660398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2165098 + ... + 2165101.

It is an arithmetic number, because the mean of its divisors is an integer number (3247650).

Almost surely, 2^8660398 is an apocalyptic number.

8660398 is a deficient number, since it is larger than the sum of its proper divisors (4330202).

8660398 is a wasteful number, since it uses less digits than its factorization.

8660398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330201.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 8660398 is about 2942.8554160883. The cubic root of 8660398 is about 205.3584685830.

The spelling of 8660398 in words is "eight million, six hundred sixty thousand, three hundred ninety-eight".