1799898 has 8 divisors (see below), whose sum is σ = 3599808. Its totient is φ = 599964.

The previous prime is 1799887. The next prime is 1799923. The reversal of 1799898 is 8989971.

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

1799898 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1799898.

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, 149986 + ... + 149997.

It is an arithmetic number, because the mean of its divisors is an integer number (449976).

2^1799898 is an apocalyptic number.

1799898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1799898 is a wasteful number, since it uses less digits than its factorization.

1799898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299988.

The product of its digits is 326592, while the sum is 51.

The square root of 1799898 is about 1341.6027728057. The cubic root of 1799898 is about 121.6417421473.

The spelling of 1799898 in words is "one million, seven hundred ninety-nine thousand, eight hundred ninety-eight".