1966602 has 32 divisors (see below), whose sum is σ = 4354560. Its totient is φ = 587120.

The previous prime is 1966597. The next prime is 1966603. The reversal of 1966602 is 2066691.

It is a self number, because there is not a number n which added to its sum of digits gives 1966602.

It is not an unprimeable number, because it can be changed into a prime (1966603) 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 15 ways as a sum of consecutive naturals, for example, 5299 + ... + 5657.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

2^1966602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1966602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2177280).

1966602 is an abundant number, since it is smaller than the sum of its proper divisors (2387958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1966602 is a wasteful number, since it uses less digits than its factorization.

1966602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1966602 is about 1402.3558749476. The cubic root of 1966602 is about 125.2868505638.

The spelling of 1966602 in words is "one million, nine hundred sixty-six thousand, six hundred two".