1798992 has 90 divisors (see below), whose sum is σ = 5602506. Its totient is φ = 535680.

The previous prime is 1798987. The next prime is 1798997. The reversal of 1798992 is 2998971.

It is an interprime number because it is at equal distance from previous prime (1798987) and next prime (1798997).

It can be written as a sum of positive squares in only one way, i.e., 1245456 + 553536 = 1116^2 + 744^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798997) 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 17 ways as a sum of consecutive naturals, for example, 58017 + ... + 58047.

2^1798992 is an apocalyptic number.

1798992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1798992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2801253).

1798992 is an abundant number, since it is smaller than the sum of its proper divisors (3803514).

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

1798992 is a wasteful number, since it uses less digits than its factorization.

1798992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 49 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 1798992 is about 1341.2650744726. The cubic root of 1798992 is about 121.6213287841.

It can be divided in two parts, 17989 and 92, that added together give a palindrome (18081).

The spelling of 1798992 in words is "one million, seven hundred ninety-eight thousand, nine hundred ninety-two".