11906945 has 8 divisors (see below), whose sum is σ = 14749440. Its totient is φ = 9218160.

The previous prime is 11906929. The next prime is 11906969. The reversal of 11906945 is 54960911.

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

It is not a de Polignac number, because 11906945 - 2⁴ = 11906929 is a prime.

It is a super-3 number, since 3×11906945³ (a number of 22 digits) contains 333 as substring.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 38255 + ... + 38564.

It is an arithmetic number, because the mean of its divisors is an integer number (1843680).

Almost surely, 2^11906945 is an apocalyptic number.

It is an amenable number.

11906945 is a deficient number, since it is larger than the sum of its proper divisors (2842495).

11906945 is an equidigital number, since it uses as much as digits as its factorization.

11906945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76855.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 11906945 is about 3450.6441427652. The cubic root of 11906945 is about 228.3495267374.

The spelling of 11906945 in words is "eleven million, nine hundred six thousand, nine hundred forty-five".