12459798 has 32 divisors (see below), whose sum is σ = 29820000. Its totient is φ = 3833568.

The previous prime is 12459757. The next prime is 12459817. The reversal of 12459798 is 89795421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8173 + ... + 9576.

It is an arithmetic number, because the mean of its divisors is an integer number (931875).

Almost surely, 2^12459798 is an apocalyptic number.

12459798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12459798 is an abundant number, since it is smaller than the sum of its proper divisors (17360202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12459798 is a wasteful number, since it uses less digits than its factorization.

12459798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17773 (or 17767 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 12459798 is about 3529.8439058973. The cubic root of 12459798 is about 231.8303729355.

The spelling of 12459798 in words is "twelve million, four hundred fifty-nine thousand, seven hundred ninety-eight".