12890069 has 4 divisors (see below), whose sum is σ = 12948096. Its totient is φ = 12832044.

The previous prime is 12890047. The next prime is 12890071. The reversal of 12890069 is 96009821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12890069 - 2²⁰ = 11841493 is a prime.

It is a super-2 number, since 2×12890069² = 332307757649522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12890099) 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, 28679 + ... + 29124.

It is an arithmetic number, because the mean of its divisors is an integer number (3237024).

Almost surely, 2^12890069 is an apocalyptic number.

It is an amenable number.

12890069 is a deficient number, since it is larger than the sum of its proper divisors (58027).

12890069 is an equidigital number, since it uses as much as digits as its factorization.

12890069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58026.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 12890069 is about 3590.2742235100. The cubic root of 12890069 is about 234.4688107782.

The spelling of 12890069 in words is "twelve million, eight hundred ninety thousand, sixty-nine".