11628778 has 12 divisors (see below), whose sum is σ = 20291202. Its totient is φ = 4983720.

The previous prime is 11628769. The next prime is 11628809. The reversal of 11628778 is 87782611.

11628778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9878449 + 1750329 = 3143^2 + 1323^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11628778.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59233 + ... + 59428.

Almost surely, 2^11628778 is an apocalyptic number.

11628778 is a deficient number, since it is larger than the sum of its proper divisors (8662424).

11628778 is a wasteful number, since it uses less digits than its factorization.

11628778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118677 (or 118670 counting only the distinct ones).

The product of its digits is 37632, while the sum is 40.

The square root of 11628778 is about 3410.0994120407. The cubic root of 11628778 is about 226.5572823816.

The spelling of 11628778 in words is "eleven million, six hundred twenty-eight thousand, seven hundred seventy-eight".