11655428 has 12 divisors (see below), whose sum is σ = 20544720. Its totient is φ = 5785512.

The previous prime is 11655409. The next prime is 11655461. The reversal of 11655428 is 82455611.

It is a junction number, because it is equal to n+sod(n) for n = 11655394 and 11655403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9926 + ... + 11037.

It is an arithmetic number, because the mean of its divisors is an integer number (1712060).

Almost surely, 2^11655428 is an apocalyptic number.

It is an amenable number.

11655428 is a deficient number, since it is larger than the sum of its proper divisors (8889292).

11655428 is a wasteful number, since it uses less digits than its factorization.

11655428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21106 (or 21104 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 11655428 is about 3414.0046865814. The cubic root of 11655428 is about 226.7302195880.

Subtracting from 11655428 its sum of digits (32), we obtain a square (11655396 = 3414²).

The spelling of 11655428 in words is "eleven million, six hundred fifty-five thousand, four hundred twenty-eight".