11975685 has 16 divisors (see below), whose sum is σ = 19214016. Its totient is φ = 6369408.

The previous prime is 11975683. The next prime is 11975687. The reversal of 11975685 is 58657911.

11975685 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11975683) and next prime (11975687).

It is not a de Polignac number, because 11975685 - 2¹ = 11975683 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11975683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5982 + ... + 7728.

It is an arithmetic number, because the mean of its divisors is an integer number (1200876).

Almost surely, 2^11975685 is an apocalyptic number.

11975685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11975685 is a deficient number, since it is larger than the sum of its proper divisors (7238331).

11975685 is a wasteful number, since it uses less digits than its factorization.

11975685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212.

The product of its digits is 75600, while the sum is 42.

The square root of 11975685 is about 3460.5902675700. The cubic root of 11975685 is about 228.7881121364.

The spelling of 11975685 in words is "eleven million, nine hundred seventy-five thousand, six hundred eighty-five".