12889617 has 16 divisors (see below), whose sum is σ = 18580800. Its totient is φ = 7900992.

The previous prime is 12889607. The next prime is 12889627. The reversal of 12889617 is 71698821.

It is an interprime number because it is at equal distance from previous prime (12889607) and next prime (12889627).

It is not a de Polignac number, because 12889617 - 2¹⁵ = 12856849 is a prime.

It is a super-2 number, since 2×12889617² = 332284452813378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12889607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13138 + ... + 14084.

It is an arithmetic number, because the mean of its divisors is an integer number (1161300).

Almost surely, 2^12889617 is an apocalyptic number.

It is an amenable number.

12889617 is a deficient number, since it is larger than the sum of its proper divisors (5691183).

12889617 is a wasteful number, since it uses less digits than its factorization.

12889617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312.

The product of its digits is 48384, while the sum is 42.

The square root of 12889617 is about 3590.2112751202. The cubic root of 12889617 is about 234.4660701376.

The spelling of 12889617 in words is "twelve million, eight hundred eighty-nine thousand, six hundred seventeen".