11858816 has 16 divisors (see below), whose sum is σ = 23625240. Its totient is φ = 5929344.

The previous prime is 11858813. The next prime is 11858839. The reversal of 11858816 is 61885811.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 11858816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11858813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46196 + ... + 46451.

Almost surely, 2^11858816 is an apocalyptic number.

11858816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11858816 is a deficient number, since it is larger than the sum of its proper divisors (11766424).

11858816 is an frugal number, since it uses more digits than its factorization.

11858816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92661 (or 92649 counting only the distinct ones).

The product of its digits is 15360, while the sum is 38.

The square root of 11858816 is about 3443.6631658744. The cubic root of 11858816 is about 228.0414411181.

It can be divided in two parts, 1185 and 8816, that added together give a palindrome (10001).

The spelling of 11858816 in words is "eleven million, eight hundred fifty-eight thousand, eight hundred sixteen".