11726985 has 8 divisors (see below), whose sum is σ = 18763200. Its totient is φ = 6254384.

The previous prime is 11726977. The next prime is 11726993. The reversal of 11726985 is 58962711.

It is an interprime number because it is at equal distance from previous prime (11726977) and next prime (11726993).

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

It is a cyclic number.

It is not a de Polignac number, because 11726985 - 2³ = 11726977 is a prime.

It is a Curzon number.

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, 390885 + ... + 390914.

It is an arithmetic number, because the mean of its divisors is an integer number (2345400).

Almost surely, 2^11726985 is an apocalyptic number.

11726985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11726985 is a deficient number, since it is larger than the sum of its proper divisors (7036215).

11726985 is an equidigital number, since it uses as much as digits as its factorization.

11726985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781807.

The product of its digits is 30240, while the sum is 39.

The square root of 11726985 is about 3424.4685719101. The cubic root of 11726985 is about 227.1932669370.

The spelling of 11726985 in words is "eleven million, seven hundred twenty-six thousand, nine hundred eighty-five".