12584172 has 12 divisors (see below), whose sum is σ = 29363096. Its totient is φ = 4194720.

The previous prime is 12584149. The next prime is 12584177. The reversal of 12584172 is 27148521.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×12584172² = 316722769851168, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12584177) 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, 524329 + ... + 524352.

Almost surely, 2^12584172 is an apocalyptic number.

12584172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12584172 is an abundant number, since it is smaller than the sum of its proper divisors (16778924).

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

12584172 is a wasteful number, since it uses less digits than its factorization.

12584172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048688 (or 1048686 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 12584172 is about 3547.4176523212. The cubic root of 12584172 is about 232.5991992001.

The spelling of 12584172 in words is "twelve million, five hundred eighty-four thousand, one hundred seventy-two".