11864479 has 4 divisors (see below), whose sum is σ = 12943080. Its totient is φ = 10785880.

The previous prime is 11864477. The next prime is 11864483. The reversal of 11864479 is 97446811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11864479 - 2¹ = 11864477 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11864473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539284 + ... + 539305.

It is an arithmetic number, because the mean of its divisors is an integer number (3235770).

Almost surely, 2^11864479 is an apocalyptic number.

11864479 is a deficient number, since it is larger than the sum of its proper divisors (1078601).

11864479 is a wasteful number, since it uses less digits than its factorization.

11864479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078600.

The product of its digits is 48384, while the sum is 40.

The square root of 11864479 is about 3444.4853026251. The cubic root of 11864479 is about 228.0777346000.

It can be divided in two parts, 1186 and 4479, that added together give a palindrome (5665).

The spelling of 11864479 in words is "eleven million, eight hundred sixty-four thousand, four hundred seventy-nine".