1227798 has 80 divisors (see below), whose sum is σ = 3293136. Its totient is φ = 336960.

The previous prime is 1227797. The next prime is 1227829. The reversal of 1227798 is 8977221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227797) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23140 + ... + 23192.

2^1227798 is an apocalyptic number.

1227798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1646568).

1227798 is an abundant number, since it is smaller than the sum of its proper divisors (2065338).

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

1227798 is a wasteful number, since it uses less digits than its factorization.

1227798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 82 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 1227798 is about 1108.0604676641. The cubic root of 1227798 is about 107.0801507362.

It can be divided in two parts, 1227 and 798, that added together give a square (2025 = 45²).

The spelling of 1227798 in words is "one million, two hundred twenty-seven thousand, seven hundred ninety-eight".