11816870 has 32 divisors (see below), whose sum is σ = 24258528. Its totient is φ = 4105728.

The previous prime is 11816869. The next prime is 11816911. The reversal of 11816870 is 7861811.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 464 + ... + 4883.

It is an arithmetic number, because the mean of its divisors is an integer number (758079).

Almost surely, 2^11816870 is an apocalyptic number.

11816870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11816870 is an abundant number, since it is smaller than the sum of its proper divisors (12441658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11816870 is a wasteful number, since it uses less digits than its factorization.

11816870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5384.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 11816870 is about 3437.5674538836. The cubic root of 11816870 is about 227.7722538595.

The spelling of 11816870 in words is "eleven million, eight hundred sixteen thousand, eight hundred seventy".