2117306 has 4 divisors (see below), whose sum is σ = 3175962. Its totient is φ = 1058652.

The previous prime is 2117293. The next prime is 2117317. The reversal of 2117306 is 6037112.

It is a happy number.

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., 2059225 + 58081 = 1435^2 + 241^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 529325 + ... + 529328.

2^2117306 is an apocalyptic number.

2117306 is a deficient number, since it is larger than the sum of its proper divisors (1058656).

2117306 is a wasteful number, since it uses less digits than its factorization.

2117306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058655.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 2117306 is about 1455.0965603698. The cubic root of 2117306 is about 128.4087276476.

The spelling of 2117306 in words is "two million, one hundred seventeen thousand, three hundred six".