1966616 has 16 divisors (see below), whose sum is σ = 3704400. Its totient is φ = 978784.

The previous prime is 1966607. The next prime is 1966619. The reversal of 1966616 is 6166691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966619) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1925 + ... + 2763.

It is an arithmetic number, because the mean of its divisors is an integer number (231525).

2^1966616 is an apocalyptic number.

It is an amenable number.

1966616 is a deficient number, since it is larger than the sum of its proper divisors (1737784).

1966616 is a wasteful number, since it uses less digits than its factorization.

1966616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1134 counting only the distinct ones).

The product of its digits is 11664, while the sum is 35.

The square root of 1966616 is about 1402.3608665390. The cubic root of 1966616 is about 125.2871478637.

The spelling of 1966616 in words is "one million, nine hundred sixty-six thousand, six hundred sixteen".