11780089 has 8 divisors (see below), whose sum is σ = 11953800. Its totient is φ = 11607936.

The previous prime is 11780081. The next prime is 11780101. The reversal of 11780089 is 98008711.

It can be written as a sum of positive squares in 4 ways, for example, as 3968064 + 7812025 = 1992^2 + 2795^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11780089 - 2³ = 11780081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11780081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25549 + ... + 26005.

It is an arithmetic number, because the mean of its divisors is an integer number (1494225).

Almost surely, 2^11780089 is an apocalyptic number.

It is an amenable number.

11780089 is a deficient number, since it is larger than the sum of its proper divisors (173711).

11780089 is a wasteful number, since it uses less digits than its factorization.

11780089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 11780089 is about 3432.2134257648. The cubic root of 11780089 is about 227.5356881581.

The spelling of 11780089 in words is "eleven million, seven hundred eighty thousand, eighty-nine".