11279887 has 8 divisors (see below), whose sum is σ = 11508480. Its totient is φ = 11053440.

The previous prime is 11279843. The next prime is 11279903. The reversal of 11279887 is 78897211.

It is a happy number.

11279887 is digitally balanced in base 2, 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11279887 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 (11279837) 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, 13539 + ... + 14347.

It is an arithmetic number, because the mean of its divisors is an integer number (1438560).

Almost surely, 2^11279887 is an apocalyptic number.

11279887 is a deficient number, since it is larger than the sum of its proper divisors (228593).

11279887 is an equidigital number, since it uses as much as digits as its factorization.

11279887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073.

The product of its digits is 56448, while the sum is 43.

The square root of 11279887 is about 3358.5543020770. The cubic root of 11279887 is about 224.2684851987.

The spelling of 11279887 in words is "eleven million, two hundred seventy-nine thousand, eight hundred eighty-seven".