12898019 has 4 divisors (see below), whose sum is σ = 13656744. Its totient is φ = 12139296.

The previous prime is 12898013. The next prime is 12898031. The reversal of 12898019 is 91089821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91089821 = 23 ⋅3960427.

It is a cyclic number.

It is not a de Polignac number, because 12898019 - 2¹⁶ = 12832483 is a prime.

It is a super-2 number, since 2×12898019² = 332717788248722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12898013) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 379337 + ... + 379370.

It is an arithmetic number, because the mean of its divisors is an integer number (3414186).

Almost surely, 2^12898019 is an apocalyptic number.

12898019 is a deficient number, since it is larger than the sum of its proper divisors (758725).

12898019 is an equidigital number, since it uses as much as digits as its factorization.

12898019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758724.

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 12898019 is about 3591.3812106208. The cubic root of 12898019 is about 234.5170040543.

The spelling of 12898019 in words is "twelve million, eight hundred ninety-eight thousand, nineteen".