12584890 has 16 divisors (see below), whose sum is σ = 22700808. Its totient is φ = 5023296.

The previous prime is 12584881. The next prime is 12584899. The reversal of 12584890 is 9848521.

It is an interprime number because it is at equal distance from previous prime (12584881) and next prime (12584899).

It can be written as a sum of positive squares in 4 ways, for example, as 5861241 + 6723649 = 2421^2 + 2593^2 .

It is not an unprimeable number, because it can be changed into a prime (12584899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5104 + ... + 7156.

Almost surely, 2^12584890 is an apocalyptic number.

12584890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12584890 is a deficient number, since it is larger than the sum of its proper divisors (10115918).

12584890 is a wasteful number, since it uses less digits than its factorization.

12584890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 12584890 is about 3547.5188512536. The cubic root of 12584890 is about 232.6036228271.

The spelling of 12584890 in words is "twelve million, five hundred eighty-four thousand, eight hundred ninety".