1966089 has 8 divisors (see below), whose sum is σ = 2682592. Its totient is φ = 1280160.

The previous prime is 1966079. The next prime is 1966123. The reversal of 1966089 is 9806691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1966089 - 2⁹ = 1965577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1966009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7492 + ... + 7749.

It is an arithmetic number, because the mean of its divisors is an integer number (335324).

2^1966089 is an apocalyptic number.

It is an amenable number.

1966089 is a deficient number, since it is larger than the sum of its proper divisors (716503).

1966089 is a wasteful number, since it uses less digits than its factorization.

1966089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15287.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 1966089 is about 1402.1729565214. The cubic root of 1966089 is about 125.2759556728.

The spelling of 1966089 in words is "one million, nine hundred sixty-six thousand, eighty-nine".