1161776 has 80 divisors (see below), whose sum is σ = 2999808. Its totient is φ = 422400.

The previous prime is 1161767. The next prime is 1161781. The reversal of 1161776 is 6771611.

Its product of digits (1764) is a multiple of the sum of its prime divisors (84).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28316 + ... + 28356.

2^1161776 is an apocalyptic number.

1161776 is a gapful number since it is divisible by the number (16) 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 1161776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499904).

1161776 is an abundant number, since it is smaller than the sum of its proper divisors (1838032).

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

1161776 is a wasteful number, since it uses less digits than its factorization.

1161776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 84 counting only the distinct ones).

The product of its digits is 1764, while the sum is 29.

The square root of 1161776 is about 1077.8571333901. The cubic root of 1161776 is about 105.1253529349.

The spelling of 1161776 in words is "one million, one hundred sixty-one thousand, seven hundred seventy-six".