8490998 has 4 divisors (see below), whose sum is σ = 12736500. Its totient is φ = 4245498.

The previous prime is 8490949. The next prime is 8491001. The reversal of 8490998 is 8990948.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122748 + ... + 2122751.

It is an arithmetic number, because the mean of its divisors is an integer number (3184125).

Almost surely, 2^8490998 is an apocalyptic number.

8490998 is a deficient number, since it is larger than the sum of its proper divisors (4245502).

8490998 is a wasteful number, since it uses less digits than its factorization.

8490998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4245501.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 8490998 is about 2913.9317081908. The cubic root of 8490998 is about 204.0106844333.

The spelling of 8490998 in words is "eight million, four hundred ninety thousand, nine hundred ninety-eight".