12800493 has 6 divisors (see below), whose sum is σ = 18489614. Its totient is φ = 8533656.

The previous prime is 12800467. The next prime is 12800503. The reversal of 12800493 is 39400821.

It can be written as a sum of positive squares in only one way, i.e., 6953769 + 5846724 = 2637^2 + 2418^2 .

It is not a de Polignac number, because 12800493 - 2⁶ = 12800429 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 (12800453) 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 5 ways as a sum of consecutive naturals, for example, 711130 + ... + 711147.

Almost surely, 2^12800493 is an apocalyptic number.

It is an amenable number.

12800493 is a deficient number, since it is larger than the sum of its proper divisors (5689121).

12800493 is a wasteful number, since it uses less digits than its factorization.

12800493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422283 (or 1422280 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12800493 is about 3577.7776621808. Note that the first 3 decimals coincide. The cubic root of 12800493 is about 233.9244222284.

The spelling of 12800493 in words is "twelve million, eight hundred thousand, four hundred ninety-three".