1966808 has 8 divisors (see below), whose sum is σ = 3687780. Its totient is φ = 983400.

The previous prime is 1966807. The next prime is 1966813. The reversal of 1966808 is 8086691.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122918 + ... + 122933.

2^1966808 is an apocalyptic number.

It is an amenable number.

1966808 is a deficient number, since it is larger than the sum of its proper divisors (1720972).

1966808 is a wasteful number, since it uses less digits than its factorization.

1966808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245857 (or 245853 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 1966808 is about 1402.4293208572. The cubic root of 1966808 is about 125.2912249772.

The spelling of 1966808 in words is "one million, nine hundred sixty-six thousand, eight hundred eight".