11628775 has 6 divisors (see below), whose sum is σ = 14419712. Its totient is φ = 9303000.

The previous prime is 11628769. The next prime is 11628809. The reversal of 11628775 is 57782611.

11628775 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11628775 - 2¹⁵ = 11596007 is a prime.

It is a Duffinian number.

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 5 ways as a sum of consecutive naturals, for example, 232551 + ... + 232600.

Almost surely, 2^11628775 is an apocalyptic number.

11628775 is a deficient number, since it is larger than the sum of its proper divisors (2790937).

11628775 is an equidigital number, since it uses as much as digits as its factorization.

11628775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465161 (or 465156 counting only the distinct ones).

The product of its digits is 23520, while the sum is 37.

The square root of 11628775 is about 3410.0989721707. The cubic root of 11628775 is about 226.5572628992.

It can be divided in two parts, 11628 and 775, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 11628775 in words is "eleven million, six hundred twenty-eight thousand, seven hundred seventy-five".