12998784 has 32 divisors (see below), whose sum is σ = 34529040. Its totient is φ = 4332800.

The previous prime is 12998767. The next prime is 12998789. The reversal of 12998784 is 48789921.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (12998789) 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, 16542 + ... + 17309.

Almost surely, 2^12998784 is an apocalyptic number.

It is an amenable number.

12998784 is an abundant number, since it is smaller than the sum of its proper divisors (21530256).

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

12998784 is an equidigital number, since it uses as much as digits as its factorization.

12998784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33868 (or 33856 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 12998784 is about 3605.3826426608. The cubic root of 12998784 is about 235.1261372025.

The spelling of 12998784 in words is "twelve million, nine hundred ninety-eight thousand, seven hundred eighty-four".