11780899 has 24 divisors (see below), whose sum is σ = 14013216. Its totient is φ = 9820800.

The previous prime is 11780897. The next prime is 11780903. The reversal of 11780899 is 99808711.

11780899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11780899 - 2¹ = 11780897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11780897) 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, 287319 + ... + 287359.

It is an arithmetic number, because the mean of its divisors is an integer number (583884).

Almost surely, 2^11780899 is an apocalyptic number.

11780899 is a deficient number, since it is larger than the sum of its proper divisors (2232317).

11780899 is a wasteful number, since it uses less digits than its factorization.

11780899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 43.

The square root of 11780899 is about 3432.3314233914. The cubic root of 11780899 is about 227.5409031635.

The spelling of 11780899 in words is "eleven million, seven hundred eighty thousand, eight hundred ninety-nine".