1068664 has 8 divisors (see below), whose sum is σ = 2003760. Its totient is φ = 534328.

The previous prime is 1068631. The next prime is 1068677. The reversal of 1068664 is 4668601.

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

It is a super-2 number, since 2×1068664² = 2284085489792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66784 + ... + 66799.

It is an arithmetic number, because the mean of its divisors is an integer number (250470).

2^1068664 is an apocalyptic number.

It is an amenable number.

1068664 is a deficient number, since it is larger than the sum of its proper divisors (935096).

1068664 is a wasteful number, since it uses less digits than its factorization.

1068664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133589 (or 133585 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1068664 is about 1033.7620615983. The cubic root of 1068664 is about 102.2383251954.

The spelling of 1068664 in words is "one million, sixty-eight thousand, six hundred sixty-four".