13980789 has 16 divisors (see below), whose sum is σ = 21803200. Its totient is φ = 8829648.

The previous prime is 13980787. The next prime is 13980793. The reversal of 13980789 is 98708931.

It is not a de Polignac number, because 13980789 - 2¹ = 13980787 is a prime.

It is a super-2 number, since 2×13980789² = 390924922125042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13980781) 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 15 ways as a sum of consecutive naturals, for example, 13114 + ... + 14139.

It is an arithmetic number, because the mean of its divisors is an integer number (1362700).

Almost surely, 2^13980789 is an apocalyptic number.

13980789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13980789 is a deficient number, since it is larger than the sum of its proper divisors (7822411).

13980789 is a wasteful number, since it uses less digits than its factorization.

13980789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27281 (or 27275 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 13980789 is about 3739.0893276305. The cubic root of 13980789 is about 240.9039348994.

The spelling of 13980789 in words is "thirteen million, nine hundred eighty thousand, seven hundred eighty-nine".