8457998 has 8 divisors (see below), whose sum is σ = 12751992. Its totient is φ = 4207336.

The previous prime is 8457989. The next prime is 8458001. The reversal of 8457998 is 8997548.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10340 + ... + 11127.

It is an arithmetic number, because the mean of its divisors is an integer number (1593999).

Almost surely, 2^8457998 is an apocalyptic number.

8457998 is a deficient number, since it is larger than the sum of its proper divisors (4293994).

8457998 is a wasteful number, since it uses less digits than its factorization.

8457998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21666.

The product of its digits is 725760, while the sum is 50.

The square root of 8457998 is about 2908.2637431980. The cubic root of 8457998 is about 203.7460475728.

The spelling of 8457998 in words is "eight million, four hundred fifty-seven thousand, nine hundred ninety-eight".