12802087 has 4 divisors (see below), whose sum is σ = 12841096. Its totient is φ = 12763080.

The previous prime is 12802073. The next prime is 12802091. The reversal of 12802087 is 78020821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12802087 - 2¹⁵ = 12769319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12802487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19008 + ... + 19669.

It is an arithmetic number, because the mean of its divisors is an integer number (3210274).

Almost surely, 2^12802087 is an apocalyptic number.

12802087 is a deficient number, since it is larger than the sum of its proper divisors (39009).

12802087 is an equidigital number, since it uses as much as digits as its factorization.

12802087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39008.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 12802087 is about 3578.0004192286. Note that the first 3 decimals coincide. The cubic root of 12802087 is about 233.9341317516.

The spelling of 12802087 in words is "twelve million, eight hundred two thousand, eighty-seven".