11887955 has 4 divisors (see below), whose sum is σ = 14265552. Its totient is φ = 9510360.

The previous prime is 11887949. The next prime is 11887963. The reversal of 11887955 is 55978811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55978811 = 7 ⋅7996973.

It is not a de Polignac number, because 11887955 - 2⁶ = 11887891 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1188791 + ... + 1188800.

It is an arithmetic number, because the mean of its divisors is an integer number (3566388).

Almost surely, 2^11887955 is an apocalyptic number.

11887955 is a deficient number, since it is larger than the sum of its proper divisors (2377597).

11887955 is an equidigital number, since it uses as much as digits as its factorization.

11887955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377596.

The product of its digits is 100800, while the sum is 44.

The square root of 11887955 is about 3447.8913846002. The cubic root of 11887955 is about 228.2280663946.

The spelling of 11887955 in words is "eleven million, eight hundred eighty-seven thousand, nine hundred fifty-five".