11775478 has 48 divisors (see below), whose sum is σ = 22120560. Its totient is φ = 4656960.

The previous prime is 11775473. The next prime is 11775493. The reversal of 11775478 is 87457711.

It is a self number, because there is not a number n which added to its sum of digits gives 11775478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11775473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59676 + ... + 59872.

It is an arithmetic number, because the mean of its divisors is an integer number (460845).

Almost surely, 2^11775478 is an apocalyptic number.

11775478 is a deficient number, since it is larger than the sum of its proper divisors (10345082).

11775478 is a wasteful number, since it uses less digits than its factorization.

11775478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 242 counting only the distinct ones).

The product of its digits is 54880, while the sum is 40.

The square root of 11775478 is about 3431.5416360581. The cubic root of 11775478 is about 227.5059967022.

The spelling of 11775478 in words is "eleven million, seven hundred seventy-five thousand, four hundred seventy-eight".