12583998 has 72 divisors (see below), whose sum is σ = 32593392. Its totient is φ = 3569184.

The previous prime is 12583997. The next prime is 12584003. The reversal of 12583998 is 89938521.

It is a happy number.

12583998 is a `hidden beast` number, since 1 + 258 + 399 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12583997) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 91786 + ... + 91922.

It is an arithmetic number, because the mean of its divisors is an integer number (452686).

Almost surely, 2^12583998 is an apocalyptic number.

12583998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12583998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16296696).

12583998 is an abundant number, since it is smaller than the sum of its proper divisors (20009394).

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

12583998 is an frugal number, since it uses more digits than its factorization.

12583998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 149 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 12583998 is about 3547.3931273542. The cubic root of 12583998 is about 232.5981271538.

The spelling of 12583998 in words is "twelve million, five hundred eighty-three thousand, nine hundred ninety-eight".