11569972 has 12 divisors (see below), whose sum is σ = 20274436. Its totient is φ = 5777280.

The previous prime is 11569969. The next prime is 11569973. The reversal of 11569972 is 27996511.

It can be written as a sum of positive squares in 2 ways, for example, as 5635876 + 5934096 = 2374^2 + 2436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11569973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2668 + ... + 5500.

Almost surely, 2^11569972 is an apocalyptic number.

It is an amenable number.

11569972 is a deficient number, since it is larger than the sum of its proper divisors (8704464).

11569972 is a wasteful number, since it uses less digits than its factorization.

11569972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858 (or 3856 counting only the distinct ones).

The product of its digits is 34020, while the sum is 40.

The square root of 11569972 is about 3401.4661544693. The cubic root of 11569972 is about 226.1747415107.

The spelling of 11569972 in words is "eleven million, five hundred sixty-nine thousand, nine hundred seventy-two".