11729636 has 6 divisors (see below), whose sum is σ = 20526870. Its totient is φ = 5864816.

The previous prime is 11729633. The next prime is 11729681. The reversal of 11729636 is 63692711.

It can be written as a sum of positive squares in only one way, i.e., 8667136 + 3062500 = 2944^2 + 1750^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11729596 and 11729605.

It is not an unprimeable number, because it can be changed into a prime (11729633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1466201 + ... + 1466208.

It is an arithmetic number, because the mean of its divisors is an integer number (3421145).

Almost surely, 2^11729636 is an apocalyptic number.

It is an amenable number.

11729636 is a deficient number, since it is larger than the sum of its proper divisors (8797234).

11729636 is a wasteful number, since it uses less digits than its factorization.

11729636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932413 (or 2932411 counting only the distinct ones).

The product of its digits is 13608, while the sum is 35.

The square root of 11729636 is about 3424.8556173947. The cubic root of 11729636 is about 227.2103854027.

The spelling of 11729636 in words is "eleven million, seven hundred twenty-nine thousand, six hundred thirty-six".