11866834 has 16 divisors (see below), whose sum is σ = 20404800. Its totient is φ = 5070384.

The previous prime is 11866787. The next prime is 11866843. The reversal of 11866834 is 43866811.

It is a junction number, because it is equal to n+sod(n) for n = 11866793 and 11866802.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4357 + ... + 6535.

It is an arithmetic number, because the mean of its divisors is an integer number (1275300).

Almost surely, 2^11866834 is an apocalyptic number.

11866834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11866834 is the 2179-th heptagonal number.

11866834 is a deficient number, since it is larger than the sum of its proper divisors (8537966).

11866834 is a wasteful number, since it uses less digits than its factorization.

11866834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577.

The product of its digits is 27648, while the sum is 37.

The square root of 11866834 is about 3444.8271364468. The cubic root of 11866834 is about 228.0928241102.

The spelling of 11866834 in words is "eleven million, eight hundred sixty-six thousand, eight hundred thirty-four".