13780089 has 12 divisors (see below), whose sum is σ = 20547072. Its totient is φ = 8890200.

The previous prime is 13780087. The next prime is 13780093. The reversal of 13780089 is 98008731.

It is not a de Polignac number, because 13780089 - 2¹ = 13780087 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13780087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24417 + ... + 24974.

It is an arithmetic number, because the mean of its divisors is an integer number (1712256).

Almost surely, 2^13780089 is an apocalyptic number.

It is an amenable number.

13780089 is a deficient number, since it is larger than the sum of its proper divisors (6766983).

13780089 is a wasteful number, since it uses less digits than its factorization.

13780089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49428 (or 49425 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 13780089 is about 3712.1542263220. The cubic root of 13780089 is about 239.7456158816.

The spelling of 13780089 in words is "thirteen million, seven hundred eighty thousand, eighty-nine".