12898805 has 8 divisors (see below), whose sum is σ = 15856344. Its totient is φ = 10067200.

The previous prime is 12898799. The next prime is 12898817. The reversal of 12898805 is 50889821.

It can be written as a sum of positive squares in 4 ways, for example, as 96721 + 12802084 = 311^2 + 3578^2 .

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

It is not a de Polignac number, because 12898805 - 2⁴ = 12898789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31256 + ... + 31665.

It is an arithmetic number, because the mean of its divisors is an integer number (1982043).

Almost surely, 2^12898805 is an apocalyptic number.

It is an amenable number.

12898805 is a deficient number, since it is larger than the sum of its proper divisors (2957539).

12898805 is an equidigital number, since it uses as much as digits as its factorization.

12898805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62967.

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 12898805 is about 3591.4906376044. The cubic root of 12898805 is about 234.5217677476.

The spelling of 12898805 in words is "twelve million, eight hundred ninety-eight thousand, eight hundred five".