11893861 has 8 divisors (see below), whose sum is σ = 13728384. Its totient is φ = 10093200.

The previous prime is 11893853. The next prime is 11893873. The reversal of 11893861 is 16839811.

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

It is a cyclic number.

It is not a de Polignac number, because 11893861 - 2³ = 11893853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11893861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11893811) 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, 7705 + ... + 9118.

It is an arithmetic number, because the mean of its divisors is an integer number (1716048).

Almost surely, 2^11893861 is an apocalyptic number.

It is an amenable number.

11893861 is a deficient number, since it is larger than the sum of its proper divisors (1834523).

11893861 is a wasteful number, since it uses less digits than its factorization.

11893861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16931.

The product of its digits is 10368, while the sum is 37.

The square root of 11893861 is about 3448.7477437470. The cubic root of 11893861 is about 228.2658551145.

It can be divided in two parts, 1189 and 3861, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 11893861 in words is "eleven million, eight hundred ninety-three thousand, eight hundred sixty-one".