1993306 has 16 divisors (see below), whose sum is σ = 3441024. Its totient is φ = 848304.

The previous prime is 1993289. The next prime is 1993307. The reversal of 1993306 is 6033991.

It is not an unprimeable number, because it can be changed into a prime (1993307) 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, 2011 + ... + 2833.

It is an arithmetic number, because the mean of its divisors is an integer number (215064).

2^1993306 is an apocalyptic number.

1993306 is a deficient number, since it is larger than the sum of its proper divisors (1447718).

1993306 is a wasteful number, since it uses less digits than its factorization.

1993306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 1993306 is about 1411.8448923306. The cubic root of 1993306 is about 125.8513826815.

The spelling of 1993306 in words is "one million, nine hundred ninety-three thousand, three hundred six".