11682728 has 8 divisors (see below), whose sum is σ = 21905130. Its totient is φ = 5841360.

The previous prime is 11682721. The next prime is 11682751. The reversal of 11682728 is 82728611.

It can be written as a sum of positive squares in only one way, i.e., 11682724 + 4 = 3418^2 + 2^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11682728² = 272972267043968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11682721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730163 + ... + 730178.

Almost surely, 2^11682728 is an apocalyptic number.

It is an amenable number.

11682728 is a deficient number, since it is larger than the sum of its proper divisors (10222402).

11682728 is a wasteful number, since it uses less digits than its factorization.

11682728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460347 (or 1460343 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 11682728 is about 3418.0005851375. Note that the first 3 decimals coincide. The cubic root of 11682728 is about 226.9071016560.

The spelling of 11682728 in words is "eleven million, six hundred eighty-two thousand, seven hundred twenty-eight".