1995798 has 64 divisors (see below), whose sum is σ = 4999680. Its totient is φ = 518400.

The previous prime is 1995797. The next prime is 1995827. The reversal of 1995798 is 8975991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32688 + ... + 32748.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2^1995798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1995798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2499840).

1995798 is an abundant number, since it is smaller than the sum of its proper divisors (3003882).

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

1995798 is a wasteful number, since it uses less digits than its factorization.

1995798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133.

The product of its digits is 204120, while the sum is 48.

The square root of 1995798 is about 1412.7271498771. The cubic root of 1995798 is about 125.9038066515.

The spelling of 1995798 in words is "one million, nine hundred ninety-five thousand, seven hundred ninety-eight".