8403998 has 8 divisors (see below), whose sum is σ = 12844008. Its totient is φ = 4122664.

The previous prime is 8403977. The next prime is 8404013. The reversal of 8403998 is 8993048.

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

It is a Curzon number.

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, 39536 + ... + 39747.

It is an arithmetic number, because the mean of its divisors is an integer number (1605501).

Almost surely, 2^8403998 is an apocalyptic number.

8403998 is a deficient number, since it is larger than the sum of its proper divisors (4440010).

8403998 is a wasteful number, since it uses less digits than its factorization.

8403998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79338.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 8403998 is about 2898.9649877154. The cubic root of 8403998 is about 203.3115166655.

The spelling of 8403998 in words is "eight million, four hundred three thousand, nine hundred ninety-eight".