12071604 has 36 divisors (see below), whose sum is σ = 28711424. Its totient is φ = 3947328.

The previous prime is 12071599. The next prime is 12071611. The reversal of 12071604 is 40617021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94989 + ... + 95115.

Almost surely, 2^12071604 is an apocalyptic number.

It is an amenable number.

12071604 is an abundant number, since it is smaller than the sum of its proper divisors (16639820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12071604 is a wasteful number, since it uses less digits than its factorization.

12071604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 12071604 is about 3474.4213906779. The cubic root of 12071604 is about 229.3973131013.

Adding to 12071604 its reverse (40617021), we get a palindrome (52688625).

The spelling of 12071604 in words is "twelve million, seventy-one thousand, six hundred four".