13009798 has 4 divisors (see below), whose sum is σ = 19514700. Its totient is φ = 6504898.

The previous prime is 13009781. The next prime is 13009807. The reversal of 13009798 is 89790031.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3252448 + ... + 3252451.

It is an arithmetic number, because the mean of its divisors is an integer number (4878675).

Almost surely, 2^13009798 is an apocalyptic number.

13009798 is a deficient number, since it is larger than the sum of its proper divisors (6504902).

13009798 is an equidigital number, since it uses as much as digits as its factorization.

13009798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6504901.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 13009798 is about 3606.9097576735. The cubic root of 13009798 is about 235.1925266996.

The spelling of 13009798 in words is "thirteen million, nine thousand, seven hundred ninety-eight".