11774945 has 24 divisors (see below), whose sum is σ = 17706024. Its totient is φ = 7451136.

The previous prime is 11774933. The next prime is 11774977. The reversal of 11774945 is 54947711.

It can be written as a sum of positive squares in 4 ways, for example, as 153664 + 11621281 = 392^2 + 3409^2 .

It is not a de Polignac number, because 11774945 - 2⁶ = 11774881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11774899 and 11774908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1337 + ... + 5033.

It is an arithmetic number, because the mean of its divisors is an integer number (737751).

Almost surely, 2^11774945 is an apocalyptic number.

It is an amenable number.

11774945 is a deficient number, since it is larger than the sum of its proper divisors (5931079).

11774945 is a wasteful number, since it uses less digits than its factorization.

11774945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3729 (or 3722 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 11774945 is about 3431.4639732919. The cubic root of 11774945 is about 227.5025640737.

The spelling of 11774945 in words is "eleven million, seven hundred seventy-four thousand, nine hundred forty-five".