1163816 has 8 divisors (see below), whose sum is σ = 2182170. Its totient is φ = 581904.

The previous prime is 1163791. The next prime is 1163821. The reversal of 1163816 is 6183611.

It can be written as a sum of positive squares in only one way, i.e., 1110916 + 52900 = 1054^2 + 230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72731 + ... + 72746.

2^1163816 is an apocalyptic number.

It is an amenable number.

1163816 is a deficient number, since it is larger than the sum of its proper divisors (1018354).

1163816 is a wasteful number, since it uses less digits than its factorization.

1163816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145483 (or 145479 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 1163816 is about 1078.8030404110. The cubic root of 1163816 is about 105.1868479561.

The spelling of 1163816 in words is "one million, one hundred sixty-three thousand, eight hundred sixteen".