11671963 has 6 divisors (see below), whose sum is σ = 11966372. Its totient is φ = 11378640.

The previous prime is 11671943. The next prime is 11671967. The reversal of 11671963 is 36917611.

11671963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-11671963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11671967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22143 + ... + 22663.

Almost surely, 2^11671963 is an apocalyptic number.

11671963 is a deficient number, since it is larger than the sum of its proper divisors (294409).

11671963 is an frugal number, since it uses more digits than its factorization.

11671963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085 (or 564 counting only the distinct ones).

The product of its digits is 6804, while the sum is 34.

The square root of 11671963 is about 3416.4254711613. The cubic root of 11671963 is about 226.8373860442.

The spelling of 11671963 in words is "eleven million, six hundred seventy-one thousand, nine hundred sixty-three".