8667998 has 4 divisors (see below), whose sum is σ = 13002000. Its totient is φ = 4333998.

The previous prime is 8667979. The next prime is 8668001. The reversal of 8667998 is 8997668.

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

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, 2166998 + ... + 2167001.

It is an arithmetic number, because the mean of its divisors is an integer number (3250500).

Almost surely, 2^8667998 is an apocalyptic number.

8667998 is a deficient number, since it is larger than the sum of its proper divisors (4334002).

8667998 is a wasteful number, since it uses less digits than its factorization.

8667998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4334001.

The product of its digits is 1306368, while the sum is 53.

The square root of 8667998 is about 2944.1463958166. The cubic root of 8667998 is about 205.4185223297.

The spelling of 8667998 in words is "eight million, six hundred sixty-seven thousand, nine hundred ninety-eight".