13579389 has 24 divisors (see below), whose sum is σ = 20217600. Its totient is φ = 8779680.

The previous prime is 13579343. The next prime is 13579403. The reversal of 13579389 is 98397531.

It is a happy number.

It is not a de Polignac number, because 13579389 - 2⁷ = 13579261 is a prime.

It is a super-2 number, since 2×13579389² = 368799611226642, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13579309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50347 + ... + 50615.

It is an arithmetic number, because the mean of its divisors is an integer number (842400).

Almost surely, 2^13579389 is an apocalyptic number.

It is an amenable number.

13579389 is a deficient number, since it is larger than the sum of its proper divisors (6638211).

13579389 is a wasteful number, since it uses less digits than its factorization.

13579389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 422 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 13579389 is about 3685.0222523073. The cubic root of 13579389 is about 238.5759946639.

It can be divided in two parts, 135 and 79389, that added together give a square (79524 = 282²).

The spelling of 13579389 in words is "thirteen million, five hundred seventy-nine thousand, three hundred eighty-nine".