1161798 has 32 divisors (see below), whose sum is σ = 2626560. Its totient is φ = 339360.

The previous prime is 1161791. The next prime is 1161829. The reversal of 1161798 is 8971611.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1611 + ... + 2217.

It is an arithmetic number, because the mean of its divisors is an integer number (82080).

2^1161798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313280).

1161798 is an abundant number, since it is smaller than the sum of its proper divisors (1464762).

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

1161798 is a wasteful number, since it uses less digits than its factorization.

1161798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652.

The product of its digits is 3024, while the sum is 33.

The square root of 1161798 is about 1077.8673387760. The cubic root of 1161798 is about 105.1260165003.

The spelling of 1161798 in words is "one million, one hundred sixty-one thousand, seven hundred ninety-eight".