11678305 has 4 divisors (see below), whose sum is σ = 14013972. Its totient is φ = 9342640.

The previous prime is 11678297. The next prime is 11678311. The reversal of 11678305 is 50387611.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1937664 + 9740641 = 1392^2 + 3121^2 .

It is not a de Polignac number, because 11678305 - 2³ = 11678297 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1167826 + ... + 1167835.

It is an arithmetic number, because the mean of its divisors is an integer number (3503493).

Almost surely, 2^11678305 is an apocalyptic number.

It is an amenable number.

11678305 is a deficient number, since it is larger than the sum of its proper divisors (2335667).

11678305 is an equidigital number, since it uses as much as digits as its factorization.

11678305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335666.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 11678305 is about 3417.3535081990. The cubic root of 11678305 is about 226.8784628886.

The spelling of 11678305 in words is "eleven million, six hundred seventy-eight thousand, three hundred five".