12689002 has 8 divisors (see below), whose sum is σ = 19548036. Its totient is φ = 6172992.

The previous prime is 12688993. The next prime is 12689003. The reversal of 12689002 is 20098621.

It is a happy number.

12689002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12680721 + 8281 = 3561^2 + 91^2 .

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

It is a super-2 number, since 2×12689002² = 322021543512008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12689003) 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, 85663 + ... + 85810.

Almost surely, 2^12689002 is an apocalyptic number.

12689002 is a deficient number, since it is larger than the sum of its proper divisors (6859034).

12689002 is a wasteful number, since it uses less digits than its factorization.

12689002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171512.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 12689002 is about 3562.1625454210. The cubic root of 12689002 is about 233.2432881578.

The spelling of 12689002 in words is "twelve million, six hundred eighty-nine thousand, two".