11630309 has 4 divisors (see below), whose sum is σ = 11671980. Its totient is φ = 11588640.

The previous prime is 11630303. The next prime is 11630323. The reversal of 11630309 is 90303611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90303611 = 113 ⋅799147.

It can be written as a sum of positive squares in 2 ways, for example, as 8008900 + 3621409 = 2830^2 + 1903^2 .

It is a cyclic number.

It is not a de Polignac number, because 11630309 - 2¹² = 11626213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11630303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20414 + ... + 20975.

It is an arithmetic number, because the mean of its divisors is an integer number (2917995).

Almost surely, 2^11630309 is an apocalyptic number.

It is an amenable number.

11630309 is a deficient number, since it is larger than the sum of its proper divisors (41671).

11630309 is an equidigital number, since it uses as much as digits as its factorization.

11630309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41670.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 11630309 is about 3410.3238849118. The cubic root of 11630309 is about 226.5672244976.

The spelling of 11630309 in words is "eleven million, six hundred thirty thousand, three hundred nine".