11621306 has 4 divisors (see below), whose sum is σ = 17431962. Its totient is φ = 5810652.

The previous prime is 11621303. The next prime is 11621321. The reversal of 11621306 is 60312611.

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., 11621281 + 25 = 3409^2 + 5^2 .

It is not an unprimeable number, because it can be changed into a prime (11621303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2905325 + ... + 2905328.

Almost surely, 2^11621306 is an apocalyptic number.

11621306 is a deficient number, since it is larger than the sum of its proper divisors (5810656).

11621306 is an equidigital number, since it uses as much as digits as its factorization.

11621306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5810655.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 11621306 is about 3409.0036667625. The cubic root of 11621306 is about 226.5087476540.

Adding to 11621306 its reverse (60312611), we get a palindrome (71933917).

The spelling of 11621306 in words is "eleven million, six hundred twenty-one thousand, three hundred six".