11543967 has 12 divisors (see below), whose sum is σ = 16823664. Its totient is φ = 7627200.

The previous prime is 11543957. The next prime is 11543971. The reversal of 11543967 is 76934511.

11543967 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 11543967 - 2⁷ = 11543839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4659 + ... + 6692.

It is an arithmetic number, because the mean of its divisors is an integer number (1401972).

Almost surely, 2^11543967 is an apocalyptic number.

11543967 is a deficient number, since it is larger than the sum of its proper divisors (5279697).

11543967 is a wasteful number, since it uses less digits than its factorization.

11543967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11470 (or 11467 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 11543967 is about 3397.6413877865. The cubic root of 11543967 is about 226.0051621240.

The spelling of 11543967 in words is "eleven million, five hundred forty-three thousand, nine hundred sixty-seven".