1089693064 has 16 divisors (see below), whose sum is σ = 2163361500. Its totient is φ = 512796672.

The previous prime is 1089693061. The next prime is 1089693071. The reversal of 1089693064 is 4603969801.

It can be written as a sum of positive squares in 2 ways, for example, as 941876100 + 147816964 = 30690^2 + 12158^2 .

It is not an unprimeable number, because it can be changed into a prime (1089693061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4006089 + ... + 4006360.

Almost surely, 2^1089693064 is an apocalyptic number.

It is an amenable number.

1089693064 is a deficient number, since it is larger than the sum of its proper divisors (1073668436).

1089693064 is a wasteful number, since it uses less digits than its factorization.

1089693064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8012472 (or 8012468 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 1089693064 is about 33010.4992994653. The cubic root of 1089693064 is about 1029.0458578478.

The spelling of 1089693064 in words is "one billion, eighty-nine million, six hundred ninety-three thousand, sixty-four".