11626945 has 16 divisors (see below), whose sum is σ = 15318720. Its totient is φ = 8401600.

The previous prime is 11626931. The next prime is 11626957. The reversal of 11626945 is 54962611.

It is not a de Polignac number, because 11626945 - 2⁵ = 11626913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11626945.

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 15 ways as a sum of consecutive naturals, for example, 9255 + ... + 10435.

It is an arithmetic number, because the mean of its divisors is an integer number (957420).

Almost surely, 2^11626945 is an apocalyptic number.

11626945 is the 1969-th octagonal number.

It is an amenable number.

11626945 is a deficient number, since it is larger than the sum of its proper divisors (3691775).

11626945 is a wasteful number, since it uses less digits than its factorization.

11626945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376.

The product of its digits is 12960, while the sum is 34.

The square root of 11626945 is about 3409.8306409556. The cubic root of 11626945 is about 226.5453779688.

The spelling of 11626945 in words is "eleven million, six hundred twenty-six thousand, nine hundred forty-five".