11878211 has 4 divisors (see below), whose sum is σ = 12503400. Its totient is φ = 11253024.

The previous prime is 11878199. The next prime is 11878219. The reversal of 11878211 is 11287811.

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

It is a cyclic number.

It is not a de Polignac number, because 11878211 - 2¹⁴ = 11861827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11878219) 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, 312566 + ... + 312603.

It is an arithmetic number, because the mean of its divisors is an integer number (3125850).

Almost surely, 2^11878211 is an apocalyptic number.

11878211 is a deficient number, since it is larger than the sum of its proper divisors (625189).

11878211 is an equidigital number, since it uses as much as digits as its factorization.

11878211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625188.

The product of its digits is 896, while the sum is 29.

The square root of 11878211 is about 3446.4780573797. The cubic root of 11878211 is about 228.1656933974.

The spelling of 11878211 in words is "eleven million, eight hundred seventy-eight thousand, two hundred eleven".