8012869 has 4 divisors (see below), whose sum is σ = 8019340. Its totient is φ = 8006400.

The previous prime is 8012863. The next prime is 8012881. The reversal of 8012869 is 9682108.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4452100 + 3560769 = 2110^2 + 1887^2 .

It is a cyclic number.

It is not a de Polignac number, because 8012869 - 2¹³ = 8004677 is a prime.

It is a super-2 number, since 2×8012869² = 128412139222322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

8012869 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8012863) 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, 732 + ... + 4069.

It is an arithmetic number, because the mean of its divisors is an integer number (2004835).

Almost surely, 2^8012869 is an apocalyptic number.

It is an amenable number.

8012869 is a deficient number, since it is larger than the sum of its proper divisors (6471).

8012869 is a wasteful number, since it uses less digits than its factorization.

8012869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6470.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 8012869 is about 2830.7011498920. The cubic root of 8012869 is about 200.1071842141.

The spelling of 8012869 in words is "eight million, twelve thousand, eight hundred sixty-nine".