1089695396 has 6 divisors (see below), whose sum is σ = 1906966950. Its totient is φ = 544847696.

The previous prime is 1089695377. The next prime is 1089695407. The reversal of 1089695396 is 6935969801.

It can be written as a sum of positive squares in only one way, i.e., 1038772900 + 50922496 = 32230^2 + 7136^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136211921 + ... + 136211928.

It is an arithmetic number, because the mean of its divisors is an integer number (317827825).

Almost surely, 2^1089695396 is an apocalyptic number.

It is an amenable number.

1089695396 is a deficient number, since it is larger than the sum of its proper divisors (817271554).

1089695396 is a wasteful number, since it uses less digits than its factorization.

1089695396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272423853 (or 272423851 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 56.

The square root of 1089695396 is about 33010.5346215417. The cubic root of 1089695396 is about 1029.0465919178.

The spelling of 1089695396 in words is "one billion, eighty-nine million, six hundred ninety-five thousand, three hundred ninety-six".