1799998 has 8 divisors (see below), whose sum is σ = 2707992. Its totient is φ = 897336.

The previous prime is 1799983. The next prime is 1799999. The reversal of 1799998 is 8999971.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1799999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340 + ... + 1927.

It is an arithmetic number, because the mean of its divisors is an integer number (338499).

2^1799998 is an apocalyptic number.

1799998 is a deficient number, since it is larger than the sum of its proper divisors (907994).

1799998 is a wasteful number, since it uses less digits than its factorization.

1799998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666.

The product of its digits is 367416, while the sum is 52.

The square root of 1799998 is about 1341.6400411437. The cubic root of 1799998 is about 121.6439948581.

The spelling of 1799998 in words is "one million, seven hundred ninety-nine thousand, nine hundred ninety-eight".