11807990 has 8 divisors (see below), whose sum is σ = 21254400. Its totient is φ = 4723192.

The previous prime is 11807989. The next prime is 11808007. The reversal of 11807990 is 9970811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11807990.

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 3 ways as a sum of consecutive naturals, for example, 590390 + ... + 590409.

It is an arithmetic number, because the mean of its divisors is an integer number (2656800).

Almost surely, 2^11807990 is an apocalyptic number.

11807990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11807990 is a deficient number, since it is larger than the sum of its proper divisors (9446410).

11807990 is a wasteful number, since it uses less digits than its factorization.

11807990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180806.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 11807990 is about 3436.2756001229. The cubic root of 11807990 is about 227.7151850398.

The spelling of 11807990 in words is "eleven million, eight hundred seven thousand, nine hundred ninety".