11657012 has 12 divisors (see below), whose sum is σ = 20425860. Its totient is φ = 5821056.

The previous prime is 11657011. The next prime is 11657027. The reversal of 11657012 is 21075611.

It can be written as a sum of positive squares in 2 ways, for example, as 2572816 + 9084196 = 1604^2 + 3014^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11657011) 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, 3164 + ... + 5772.

It is an arithmetic number, because the mean of its divisors is an integer number (1702155).

Almost surely, 2^11657012 is an apocalyptic number.

It is an amenable number.

11657012 is a deficient number, since it is larger than the sum of its proper divisors (8768848).

11657012 is a wasteful number, since it uses less digits than its factorization.

11657012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3730 (or 3728 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 11657012 is about 3414.2366643219. The cubic root of 11657012 is about 226.7404901790.

The spelling of 11657012 in words is "eleven million, six hundred fifty-seven thousand, twelve".