12589506 has 20 divisors (see below), whose sum is σ = 28210182. Its totient is φ = 4196448.

The previous prime is 12589483. The next prime is 12589529. The reversal of 12589506 is 60598521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12589483) and next prime (12589529).

It can be written as a sum of positive squares in only one way, i.e., 10791225 + 1798281 = 3285^2 + 1341^2 .

It is a super-2 number, since 2×12589506² = 316991322648072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38695 + ... + 39018.

Almost surely, 2^12589506 is an apocalyptic number.

12589506 is an abundant number, since it is smaller than the sum of its proper divisors (15620676).

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

12589506 is an equidigital number, since it uses as much as digits as its factorization.

12589506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77727 (or 77718 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 12589506 is about 3548.1693871629. The cubic root of 12589506 is about 232.6320581724.

The spelling of 12589506 in words is "twelve million, five hundred eighty-nine thousand, five hundred six".