12872811 has 16 divisors (see below), whose sum is σ = 20095488. Its totient is φ = 7176000.

The previous prime is 12872809. The next prime is 12872831. The reversal of 12872811 is 11827821.

It is a happy number.

12872811 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12872811 - 2¹ = 12872809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12872831) 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, 6615 + ... + 8336.

It is an arithmetic number, because the mean of its divisors is an integer number (1255968).

Almost surely, 2^12872811 is an apocalyptic number.

12872811 is a deficient number, since it is larger than the sum of its proper divisors (7222677).

12872811 is a wasteful number, since it uses less digits than its factorization.

12872811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15002.

The product of its digits is 1792, while the sum is 30.

The square root of 12872811 is about 3587.8699809218. The cubic root of 12872811 is about 234.3641237264.

The spelling of 12872811 in words is "twelve million, eight hundred seventy-two thousand, eight hundred eleven".