11649812 has 12 divisors (see below), whose sum is σ = 21460320. Its totient is φ = 5518296.

The previous prime is 11649809. The next prime is 11649817. The reversal of 11649812 is 21894611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11649817) 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, 76568 + ... + 76719.

It is an arithmetic number, because the mean of its divisors is an integer number (1788360).

Almost surely, 2^11649812 is an apocalyptic number.

It is an amenable number.

11649812 is a deficient number, since it is larger than the sum of its proper divisors (9810508).

11649812 is a wasteful number, since it uses less digits than its factorization.

11649812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153310 (or 153308 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 11649812 is about 3413.1820930035. The cubic root of 11649812 is about 226.6937981748.

The spelling of 11649812 in words is "eleven million, six hundred forty-nine thousand, eight hundred twelve".