13290789 has 4 divisors (see below), whose sum is σ = 17721056. Its totient is φ = 8860524.

The previous prime is 13290779. The next prime is 13290793. The reversal of 13290789 is 98709231.

13290789 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98709231 = 3 ⋅32903077.

It is not a de Polignac number, because 13290789 - 2⁸ = 13290533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13290779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215129 + ... + 2215134.

It is an arithmetic number, because the mean of its divisors is an integer number (4430264).

Almost surely, 2^13290789 is an apocalyptic number.

It is an amenable number.

13290789 is a deficient number, since it is larger than the sum of its proper divisors (4430267).

13290789 is an equidigital number, since it uses as much as digits as its factorization.

13290789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430266.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 13290789 is about 3645.6534393713. The cubic root of 13290789 is about 236.8737421468.

The spelling of 13290789 in words is "thirteen million, two hundred ninety thousand, seven hundred eighty-nine".