2193706 has 4 divisors (see below), whose sum is σ = 3290562. Its totient is φ = 1096852.

The previous prime is 2193703. The next prime is 2193707. The reversal of 2193706 is 6073912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2128681 + 65025 = 1459^2 + 255^2 .

It is not an unprimeable number, because it can be changed into a prime (2193701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548425 + ... + 548428.

2^2193706 is an apocalyptic number.

2193706 is a deficient number, since it is larger than the sum of its proper divisors (1096856).

2193706 is a wasteful number, since it uses less digits than its factorization.

2193706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096855.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 2193706 is about 1481.1164707747. The cubic root of 2193706 is about 129.9349970883.

The spelling of 2193706 in words is "two million, one hundred ninety-three thousand, seven hundred six".