11870863 has 4 divisors (see below), whose sum is σ = 11979880. Its totient is φ = 11761848.

The previous prime is 11870849. The next prime is 11870867. The reversal of 11870863 is 36807811.

11870863 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36807811 = 53 ⋅694487.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11870863 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 (11870867) 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, 54345 + ... + 54562.

It is an arithmetic number, because the mean of its divisors is an integer number (2994970).

Almost surely, 2^11870863 is an apocalyptic number.

11870863 is a deficient number, since it is larger than the sum of its proper divisors (109017).

11870863 is a wasteful number, since it uses less digits than its factorization.

11870863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109016.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 11870863 is about 3445.4118766847. The cubic root of 11870863 is about 228.1186350385.

The spelling of 11870863 in words is "eleven million, eight hundred seventy thousand, eight hundred sixty-three".