11878305 has 8 divisors (see below), whose sum is σ = 19005312. Its totient is φ = 6335088.

The previous prime is 11878303. The next prime is 11878319. The reversal of 11878305 is 50387811.

11878305 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11878305 - 2¹ = 11878303 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11878303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395929 + ... + 395958.

It is an arithmetic number, because the mean of its divisors is an integer number (2375664).

Almost surely, 2^11878305 is an apocalyptic number.

11878305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11878305 is a deficient number, since it is larger than the sum of its proper divisors (7127007).

11878305 is an equidigital number, since it uses as much as digits as its factorization.

11878305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791895.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 11878305 is about 3446.4916944626. The cubic root of 11878305 is about 228.1662952702.

The spelling of 11878305 in words is "eleven million, eight hundred seventy-eight thousand, three hundred five".