11671863 has 16 divisors (see below), whose sum is σ = 17965056. Its totient is φ = 6602400.

The previous prime is 11671861. The next prime is 11671889. The reversal of 11671863 is 36817611.

11671863 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11671863 - 2¹ = 11671861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11671861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631 + ... + 4872.

It is an arithmetic number, because the mean of its divisors is an integer number (1122816).

Almost surely, 2^11671863 is an apocalyptic number.

11671863 is a deficient number, since it is larger than the sum of its proper divisors (6293193).

11671863 is a wasteful number, since it uses less digits than its factorization.

11671863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5614.

The product of its digits is 6048, while the sum is 33.

The square root of 11671863 is about 3416.4108359505. The cubic root of 11671863 is about 226.8367382296.

The spelling of 11671863 in words is "eleven million, six hundred seventy-one thousand, eight hundred sixty-three".