11863563 has 8 divisors (see below), whose sum is σ = 15834000. Its totient is φ = 7901088.

The previous prime is 11863559. The next prime is 11863591. The reversal of 11863563 is 36536811.

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

It is not a de Polignac number, because 11863563 - 2² = 11863559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11863963) 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, 4833 + ... + 6861.

It is an arithmetic number, because the mean of its divisors is an integer number (1979250).

Almost surely, 2^11863563 is an apocalyptic number.

11863563 is a deficient number, since it is larger than the sum of its proper divisors (3970437).

11863563 is a wasteful number, since it uses less digits than its factorization.

11863563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981.

The product of its digits is 12960, while the sum is 33.

The square root of 11863563 is about 3444.3523338938. The cubic root of 11863563 is about 228.0718648499.

The spelling of 11863563 in words is "eleven million, eight hundred sixty-three thousand, five hundred sixty-three".