12588890 has 8 divisors (see below), whose sum is σ = 22660020. Its totient is φ = 5035552.

The previous prime is 12588881. The next prime is 12588899. The reversal of 12588890 is 9888521.

It is an interprime number because it is at equal distance from previous prime (12588881) and next prime (12588899).

It can be written as a sum of positive squares in 2 ways, for example, as 11744329 + 844561 = 3427^2 + 919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12588899) 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, 629435 + ... + 629454.

Almost surely, 2^12588890 is an apocalyptic number.

12588890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12588890 is a deficient number, since it is larger than the sum of its proper divisors (10071130).

12588890 is a wasteful number, since it uses less digits than its factorization.

12588890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258896.

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 12588890 is about 3548.0825807751. The cubic root of 12588890 is about 232.6282639095.

The spelling of 12588890 in words is "twelve million, five hundred eighty-eight thousand, eight hundred ninety".