11287806 has 16 divisors (see below), whose sum is σ = 22946448. Its totient is φ = 3700800.

The previous prime is 11287799. The next prime is 11287807. The reversal of 11287806 is 60878211.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11287807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15055 + ... + 15786.

It is an arithmetic number, because the mean of its divisors is an integer number (1434153).

Almost surely, 2^11287806 is an apocalyptic number.

11287806 is an abundant number, since it is smaller than the sum of its proper divisors (11658642).

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

11287806 is a wasteful number, since it uses less digits than its factorization.

11287806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30907.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 11287806 is about 3359.7330251078. The cubic root of 11287806 is about 224.3209551892.

The spelling of 11287806 in words is "eleven million, two hundred eighty-seven thousand, eight hundred six".