12820498 has 4 divisors (see below), whose sum is σ = 19230750. Its totient is φ = 6410248.

The previous prime is 12820487. The next prime is 12820529. The reversal of 12820498 is 89402821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89402821 = 1423 ⋅62827.

It can be written as a sum of positive squares in only one way, i.e., 9199089 + 3621409 = 3033^2 + 1903^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3205123 + ... + 3205126.

Almost surely, 2^12820498 is an apocalyptic number.

12820498 is a deficient number, since it is larger than the sum of its proper divisors (6410252).

12820498 is an equidigital number, since it uses as much as digits as its factorization.

12820498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6410251.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 12820498 is about 3580.5723006246. The cubic root of 12820498 is about 234.0462202024.

The spelling of 12820498 in words is "twelve million, eight hundred twenty thousand, four hundred ninety-eight".