11893887 has 12 divisors (see below), whose sum is σ = 17244864. Its totient is φ = 7899360.

The previous prime is 11893879. The next prime is 11893913. The reversal of 11893887 is 78839811.

It is not a de Polignac number, because 11893887 - 2³ = 11893879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11893877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178 + ... + 4880.

It is an arithmetic number, because the mean of its divisors is an integer number (1437072).

Almost surely, 2^11893887 is an apocalyptic number.

11893887 is a deficient number, since it is larger than the sum of its proper divisors (5350977).

11893887 is a wasteful number, since it uses less digits than its factorization.

11893887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4990 (or 4987 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 11893887 is about 3448.7515132291. The cubic root of 11893887 is about 228.2660214442.

It can be divided in two parts, 118938 and 87, that added together give a square (119025 = 345²).

The spelling of 11893887 in words is "eleven million, eight hundred ninety-three thousand, eight hundred eighty-seven".