12495784 has 48 divisors (see below), whose sum is σ = 27578880. Its totient is φ = 5292000.

The previous prime is 12495779. The next prime is 12495797. The reversal of 12495784 is 48759421.

12495784 is nontrivially palindromic in base 13.

It is a super-2 number, since 2×12495784² = 312289235549312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49659 + ... + 49909.

It is an arithmetic number, because the mean of its divisors is an integer number (574560).

Almost surely, 2^12495784 is an apocalyptic number.

12495784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12495784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13789440).

12495784 is an abundant number, since it is smaller than the sum of its proper divisors (15083096).

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

12495784 is a wasteful number, since it uses less digits than its factorization.

12495784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 387 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 12495784 is about 3534.9376232120. The cubic root of 12495784 is about 232.0533468286.

The spelling of 12495784 in words is "twelve million, four hundred ninety-five thousand, seven hundred eighty-four".