1093771816 has 16 divisors (see below), whose sum is σ = 2052229140. Its totient is φ = 546510720.

The previous prime is 1093771807. The next prime is 1093771817. The reversal of 1093771816 is 6181773901.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1059502500 + 34269316 = 32550^2 + 5854^2 .

It is not an unprimeable number, because it can be changed into a prime (1093771817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34311 + ... + 58006.

Almost surely, 2^1093771816 is an apocalyptic number.

It is an amenable number.

1093771816 is a deficient number, since it is larger than the sum of its proper divisors (958457324).

1093771816 is a wasteful number, since it uses less digits than its factorization.

1093771816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93804 (or 93800 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 1093771816 is about 33072.2212135804. The cubic root of 1093771816 is about 1030.3281751893.

The spelling of 1093771816 in words is "one billion, ninety-three million, seven hundred seventy-one thousand, eight hundred sixteen".