12017672 has 8 divisors (see below), whose sum is σ = 22533150. Its totient is φ = 6008832.

The previous prime is 12017669. The next prime is 12017689. The reversal of 12017672 is 27671021.

It can be written as a sum of positive squares in only one way, i.e., 11519236 + 498436 = 3394^2 + 706^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 751097 + ... + 751112.

Almost surely, 2^12017672 is an apocalyptic number.

It is an amenable number.

12017672 is a deficient number, since it is larger than the sum of its proper divisors (10515478).

12017672 is a wasteful number, since it uses less digits than its factorization.

12017672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502215 (or 1502211 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 12017672 is about 3466.6514102228. The cubic root of 12017672 is about 229.0551788875.

Adding to 12017672 its reverse (27671021), we get a palindrome (39688693).

The spelling of 12017672 in words is "twelve million, seventeen thousand, six hundred seventy-two".